Answer
5/21
Work Step by Step
Just like adding, you need to find the common denominator then subtract. Here, the common denominator is 21. Make 2/3 and 3/7 turn into 14/21 and 9/21. So now you would do 14/21-9/21 which is equal to 5/21.
Algebra 2 Common Core
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133186024
ISBN 13:
978-0-13318-602-4
Skills Handbook - Operations With Fractions - Exercises - Page 973: 5
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