Explanation Method used: To add two fractions when the denominators are different: a). Find the least common multiple of the denominators. That number is the least common denominator, LCD. b). Multiply by 1, using an appropriate notation, n n , to express each number in terms of the LCD. c). Add the numerators, keeping the same denominator. d). Simplify, if possible. Calculation: To find the LCM of 15 and 20, list the multiples of 15 and 20. The multiples of 15 are 15, 30, 45, 60 , ..... . The multiples of 20 are 20, 40, 60, .... . The least number which is common to both the sets is 60. Thus, the least common denominator is 60. By the above mentioned method, simplify the expression as follows. 4 15 − 3 20 = 4 15 ⋅ 1 − 3 20 ⋅ 1 = 4

13th Edition

ISBN: 9780134689623

Author: BITTINGER, Marvin L., BEECHER, Judith A., Johnson, Barbara L. (barbara Loreen)

Publisher: Pearson Higher Education,

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Chapter 5, Problem 6CUR

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To simplify: The expression 415−320.

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Chapter 5 Solutions

Basic College Mathematics

Ch. 5.1 - Prob. 1SR Ch. 5.1 - Prob. 2SR Ch. 5.1 - Prob. 1DE Ch. 5.1 - Find the ratio of 57.3 to 86.1.Ch. 5.1 - Prob. 3DE Ch. 5.1 - Record Snowfall. The greatest snowfall recorded in...Ch. 5.1 - Prob. 5DE Ch. 5.1 - Prob. 6DE Ch. 5.1 - Prob. 7DE Ch. 5.1 - Prob. 8DE

Ch. 5.1 - Prob. 9DE Ch. 5.1 - Prob. 10DE Ch. 5.1 - Prob. 11DE Ch. 5.1 - Prob. 1RC Ch. 5.1 - Prob. 2RC Ch. 5.1 - Prob. 3RC Ch. 5.1 - Prob. 4RC Ch. 5.1 - Prob. 1CC Ch. 5.1 - Prob. 2CC Ch. 5.1 - a. Find fraction notation for each ratio. You need...Ch. 5.1 - Prob. 2E Ch. 5.1 - Prob. 3E Ch. 5.1 - Prob. 4E Ch. 5.1 - Prob. 5E Ch. 5.1 - Prob. 6E Ch. 5.1 - a. Find fraction notation for each ratio. You need...Ch. 5.1 - Prob. 8E Ch. 5.1 - a. Find fraction notation for each ratio. You need...Ch. 5.1 - a. Find fraction notation for each ratio. You need...Ch. 5.1 - Prob. 11E Ch. 5.1 - Prob. 12E Ch. 5.1 - Prob. 13E Ch. 5.1 - Prob. 14E Ch. 5.1 - Prob. 15E Ch. 5.1 - Prob. 16E Ch. 5.1 - Prob. 17E Ch. 5.1 - Prob. 18E Ch. 5.1 - Prob. 19E Ch. 5.1 - Prob. 20E Ch. 5.1 - Prob. 21E Ch. 5.1 - Prob. 22E Ch. 5.1 - Prob. 23E Ch. 5.1 - Prob. 24E Ch. 5.1 - b. Find the ratio of the first number to the...Ch. 5.1 - Prob. 26E Ch. 5.1 - Prob. 27E Ch. 5.1 - Prob. 28E Ch. 5.1 - Prob. 29E Ch. 5.1 - Prob. 30E Ch. 5.1 - Prob. 31E Ch. 5.1 - Prob. 32E Ch. 5.1 - Prob. 33E Ch. 5.1 - Prob. 34E Ch. 5.1 - Prob. 35E Ch. 5.1 - Prob. 36E Ch. 5.1 - Prob. 37E Ch. 5.1 - Prob. 38E Ch. 5.1 - Prob. 39E Ch. 5.1 - For this right triangle, find the ratios of...Ch. 5.1 - Prob. 41E Ch. 5.1 - Prob. 42E Ch. 5.1 - Prob. 43E Ch. 5.1 - Prob. 44E Ch. 5.1 - Prob. 45E Ch. 5.1 - Prob. 46E Ch. 5.1 - Prob. 47E Ch. 5.1 - Prob. 48E Ch. 5.1 - Prob. 49E Ch. 5.1 - Prob. 50E Ch. 5.1 - Prob. 51E Ch. 5.1 - Prob. 52E Ch. 5.1 - Find the ratio of 334 to 578 and simplify.Ch. 5.1 - Prob. 54E Ch. 5.1 - Prob. 55E Ch. 5.2 - Prob. 1SR Ch. 5.2 - Divide using decimal notation. [4.4a] Divide. 2....Ch. 5.2 - Prob. 1DE Ch. 5.2 - Prob. 2DE Ch. 5.2 - Prob. 3DE Ch. 5.2 - Prob. 4DE Ch. 5.2 - Prob. 5DE Ch. 5.2 - Unit Price of Pasta Sauce. Gregory bought a 26-oz...Ch. 5.2 - Prob. 7DE Ch. 5.2 - Prob. 1RC Ch. 5.2 - Prob. 2RC Ch. 5.2 - Prob. 3RC Ch. 5.2 - Prob. 4RC Ch. 5.2 - Prob. 1CC Ch. 5.2 - Prob. 2CC Ch. 5.2 - Prob. 3CC Ch. 5.2 - Complete each sentence with the correct quantity...Ch. 5.2 - Prob. 1E Ch. 5.2 - Prob. 2E Ch. 5.2 - Prob. 3E Ch. 5.2 - Prob. 4E Ch. 5.2 - Prob. 5E Ch. 5.2 - Prob. 6E Ch. 5.2 - Prob. 7E Ch. 5.2 - Prob. 8E Ch. 5.2 - Prob. 9E Ch. 5.2 - Prob. 10E Ch. 5.2 - Prob. 11E Ch. 5.2 - Prob. 12E Ch. 5.2 - Broadway Musicals. In the 17 years from 1987...Ch. 5.2 - Prob. 14E Ch. 5.2 - Prob. 15E Ch. 5.2 - Prob. 16E Ch. 5.2 - Prob. 17E Ch. 5.2 - Prob. 18E Ch. 5.2 - Prob. 19E Ch. 5.2 - Prob. 20E Ch. 5.2 - Prob. 21E Ch. 5.2 - Prob. 22E Ch. 5.2 - Prob. 23E Ch. 5.2 - Prob. 24E Ch. 5.2 - Prob. 25E Ch. 5.2 - Prob. 26E Ch. 5.2 - Prob. 27E Ch. 5.2 - Prob. 28E Ch. 5.2 - Prob. 29E Ch. 5.2 - Prob. 30E Ch. 5.2 - Prob. 31E Ch. 5.2 - Prob. 32E Ch. 5.2 - Prob. 33E Ch. 5.2 - Prob. 34E Ch. 5.2 - Prob. 35E Ch. 5.2 - Prob. 36E Ch. 5.2 - Prob. 37E Ch. 5.2 - Prob. 38E Ch. 5.2 - Prob. 39E Ch. 5.2 - Prob. 40E Ch. 5.2 - Prob. 41E Ch. 5.2 - Divide. Simplify, if possible. 42. 95 10 [4.4a]Ch. 5.2 - Prob. 43E Ch. 5.2 - Prob. 44E Ch. 5.2 - Prob. 45E Ch. 5.2 - Prob. 46E Ch. 5.2 - Prob. 47E Ch. 5.3 - Prob. 1SR Ch. 5.3 - Prob. 2SR Ch. 5.3 - Prob. 1DE Ch. 5.3 - Prob. 2DE Ch. 5.3 - Prob. 3DE Ch. 5.3 - Prob. 4DE Ch. 5.3 - Prob. 5DE Ch. 5.3 - Prob. 6DE Ch. 5.3 - Prob. 7DE Ch. 5.3 - Prob. 8DE Ch. 5.3 - Prob. 9DE Ch. 5.3 - Prob. 10DE Ch. 5.3 - Prob. 11DE Ch. 5.3 - Prob. 12DE Ch. 5.3 - Prob. 1RC Ch. 5.3 - Prob. 2RC Ch. 5.3 - Prob. 3RC Ch. 5.3 - Prob. 4RC Ch. 5.3 - Prob. 1CC Ch. 5.3 - Prob. 2CC Ch. 5.3 - Prob. 3CC Ch. 5.3 - Prob. 4CC Ch. 5.3 - Prob. 5CC Ch. 5.3 - Prob. 1E Ch. 5.3 - Prob. 2E Ch. 5.3 - Prob. 3E Ch. 5.3 - Prob. 4E Ch. 5.3 - a Determine whether the two pairs of numbers are...Ch. 5.3 - Prob. 6E Ch. 5.3 - Prob. 7E Ch. 5.3 - Prob. 8E Ch. 5.3 - Prob. 9E Ch. 5.3 - Prob. 10E Ch. 5.3 - Prob. 11E Ch. 5.3 - Prob. 12E Ch. 5.3 - Prob. 13E Ch. 5.3 - Prob. 14E Ch. 5.3 - Prob. 15E Ch. 5.3 - Prob. 16E Ch. 5.3 - Prob. 17E Ch. 5.3 - Prob. 18E Ch. 5.3 - Prob. 19E Ch. 5.3 - Prob. 20E Ch. 5.3 - Prob. 21E Ch. 5.3 - b Solve. 22. 89=32n Ch. 5.3 - Prob. 23E Ch. 5.3 - Prob. 24E Ch. 5.3 - Prob. 25E Ch. 5.3 - Prob. 26E Ch. 5.3 - Prob. 27E Ch. 5.3 - Prob. 28E Ch. 5.3 - Prob. 29E Ch. 5.3 - Prob. 30E Ch. 5.3 - Prob. 31E Ch. 5.3 - Prob. 32E Ch. 5.3 - Prob. 33E Ch. 5.3 - Prob. 34E Ch. 5.3 - Prob. 35E Ch. 5.3 - Prob. 36E Ch. 5.3 - Prob. 37E Ch. 5.3 - Prob. 38E Ch. 5.3 - b Solve. 39. 82.4=6y Ch. 5.3 - Prob. 40E Ch. 5.3 - Prob. 41E Ch. 5.3 - Prob. 42E Ch. 5.3 - Prob. 43E Ch. 5.3 - Prob. 44E Ch. 5.3 - Prob. 45E Ch. 5.3 - Prob. 46E Ch. 5.3 - Prob. 47E Ch. 5.3 - Prob. 48E Ch. 5.3 - Prob. 49E Ch. 5.3 - Prob. 50E Ch. 5.3 - Prob. 51E Ch. 5.3 - Prob. 52E Ch. 5.3 - Prob. 53E Ch. 5.3 - Prob. 54E Ch. 5.3 - Prob. 55E Ch. 5.3 - Prob. 56E Ch. 5.3 - Prob. 57E Ch. 5.3 - Prob. 58E Ch. 5.3 - Prob. 59E Ch. 5.3 - Prob. 60E Ch. 5.3 - Prob. 61E Ch. 5.3 - Prob. 62E Ch. 5.3 - Prob. 63E Ch. 5.3 - Prob. 64E Ch. 5.3 - Prob. 65E Ch. 5.3 - Prob. 66E Ch. 5.3 - Prob. 67E Ch. 5.3 - Prob. 68E Ch. 5.3 - Prob. 69E Ch. 5.4 - Prob. 1SR Ch. 5.4 - Solve equations of the type a x = b, where a and...Ch. 5.4 - Prob. 1DE Ch. 5.4 - Prob. 2DE Ch. 5.4 - Prob. 3DE Ch. 5.4 - Prob. 4DE Ch. 5.4 - Prob. 5DE Ch. 5.4 - Prob. 6DE Ch. 5.4 - Prob. 1RC Ch. 5.4 - Prob. 2RC Ch. 5.4 - Prob. 3RC Ch. 5.4 - Prob. 4RC Ch. 5.4 - Prob. 1E Ch. 5.4 - Prob. 2E Ch. 5.4 - Prob. 3E Ch. 5.4 - Prob. 4E Ch. 5.4 - Prob. 5E Ch. 5.4 - Prob. 6E Ch. 5.4 - Prob. 7E Ch. 5.4 - Prob. 8E Ch. 5.4 - Prob. 9E Ch. 5.4 - Prob. 10E Ch. 5.4 - Prob. 11E Ch. 5.4 - Prob. 12E Ch. 5.4 - Painting. 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Do not...Ch. 5 - Prob. 3RE Ch. 5 - Prob. 4RE Ch. 5 - Prob. 5RE Ch. 5 - Find the ratio of the first number to the second...Ch. 5 - Prob. 7RE Ch. 5 - Prob. 8RE Ch. 5 - Prob. 9RE Ch. 5 - Prob. 10RE Ch. 5 - Prob. 11RE Ch. 5 - Prob. 12RE Ch. 5 - Prob. 13RE Ch. 5 - Prob. 14RE Ch. 5 - Prob. 15RE Ch. 5 - Prob. 16RE Ch. 5 - Solve. [5.3b] 17. 6x=4856 Ch. 5 - Prob. 18RE Ch. 5 - Solve. [5.3b] 19. 4.5120=0.9x Ch. 5 - Prob. 20RE Ch. 5 - Prob. 21RE Ch. 5 - Prob. 22RE Ch. 5 - Prob. 23RE Ch. 5 - Prob. 24RE Ch. 5 - Prob. 25RE Ch. 5 - Prob. 26RE Ch. 5 - Prob. 27RE Ch. 5 - Prob. 28RE Ch. 5 - How high is a billboard that casts a 25-ft shadow...Ch. 5 - Prob. 30RE Ch. 5 - Prob. 31RE Ch. 5 - Prob. 32RE Ch. 5 - Prob. 33RE Ch. 5 - Prob. 34RE Ch. 5 - Prob. 35RE Ch. 5 - Write fraction notation for each ratio. Do not...Ch. 5 - Write fraction notation for each ratio. Do not...Ch. 5 - Prob. 3T Ch. 5 - Prob. 4T Ch. 5 - Prob. 5T Ch. 5 - Prob. 6T Ch. 5 - Prob. 7T Ch. 5 - Prob. 8T Ch. 5 - Prob. 9T Ch. 5 - Prob. 10T Ch. 5 - Determine whether the two pairs of numbers are...Ch. 5 - Prob. 12T Ch. 5 - Prob. 13T Ch. 5 - Prob. 14T Ch. 5 - Prob. 15T Ch. 5 - Prob. 16T Ch. 5 - Prob. 17T Ch. 5 - Prob. 18T Ch. 5 - Prob. 19T Ch. 5 - Charity Work. 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The expression 4 15 − 3 20 .

Solution Summary: The author explains how to simplify the expression by adding two tions when the denominators are different.

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To simplify: The expression 415−320.

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Chapter 5 Solutions