Concept explainers
To express: the fraction in terms of n and d .
Answer to Problem 20OE
The expression is
Explanation of Solution
Given information:
Decrease both the numerator and the denominator by 7.
Formula used:
Fraction problem
Step1. The problem asks for .
Step2. Let n = the numerator of the original fraction
Let d = the denominator of the original fraction.
Then
Step3. Use the facts of the problem to write two equations.
Step4. Solve the equations.
Calculation:
Consider ,
Let n = the numerator of the original fraction.
Let d = the denominator of the original fraction.
Original fraction
Fraction | Decrease by 7 | |
Numerator | ||
Denominator |
The new fraction is :-
Hence, the expression is
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