About of Canadians live in Ontario. About live in British Columbia. How can we estimate the fraction of Canadians who live in Ontario and British Columbia?
About of Canadians live in Ontario. About live in British Columbia. How can we estimate the fraction of Canadians who live in Ontario and British Columbia?
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:5.5 Estimating Sums and Differences with Fractions
About of Canadians live in Ontario. About live in
British Columbia. How can we estimate the fraction of
Canadians who live in Ontario and British Columbia?
Activity: Learn About Rounding
Round fractions to estimate sums and differences.
When there are no mixed numbers, use the
following guidelines.
If the numerator
is much smaller
than the denominator,
round the fraction to 0.
If the numerator
If the nun
is almost :
is about half the
denominator, round
the fraction to .
as the den
round the
5.
8.
一
Inquire
1. What should you round to? Why?
3. Estimate the fraction of Canadians who
2. What should you
4. Could you use th
live in Ontario and British Columbia.
to estimate + ? I
5. How would you round ?? Explain.
Example +
Estimate - .
Sołution
1
Round to 1.
Round to
8
The difference is about 1 – 0, or 1
To estimate sums and differences of mixed numbers,
round each mixed number to the nearest whole number,
1/2
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