This math topic focuses on the subtraction of fractions with different denominators. The content hones skills on how to simplify basic problems by changing one denominator to make the fractions comparable. It involves setting up and solving fraction subtraction problems. Examples include subtracting fractions like 3/5 - 3/10 and 6/7 - 12/14. It's part of a broader unit on advanced fraction addition and subtraction.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

more
View

Fraction Subtraction - Problem Simplification - Basic - One Changed Denominator Worksheet

Mobius Math Academy logo
Math worksheet on 'Fraction Subtraction - Problem Simplification - Basic - One Changed Denominator (Level 3)'. Part of a broader unit on 'Fraction Addition and Subtraction - Practice' Learn online: app.mobius.academy/math/units/fractions_addition_and_subtraction_practice/
1
Set up this fraction subtraction problem correctly
A LaTex expression showing 5 over 7 - 14 over 21
a A LaTex expression showing 5 over 21 - 14 over 21
b A LaTex expression showing 15 over 21 - 14 over 21
c A LaTex expression showing 15 over 21 - 15 over 21
2
Set up this fraction subtraction problem correctly
A LaTex expression showing 4 over 5 - 8 over 10
a A LaTex expression showing 4 over 10 - 8 over 10
b A LaTex expression showing 20 over 30 - 24 over 30
c A LaTex expression showing 8 over 10 - 8 over 10
3
Set up this fraction subtraction problem correctly
A LaTex expression showing 2 over 5 - 6 over 15
a A LaTex expression showing 6 over 15 - 7 over 15
b A LaTex expression showing 9 over 15 - 6 over 15
c A LaTex expression showing 6 over 15 - 6 over 15
4
Set up this fraction subtraction problem correctly
A LaTex expression showing 6 over 7 - 6 over 14
a A LaTex expression showing 6 over 14 - 6 over 14
b A LaTex expression showing 42 over 56 - 24 over 56
c A LaTex expression showing 12 over 14 - 6 over 14
5
Set up this fraction subtraction problem correctly
A LaTex expression showing 4 over 5 - 12 over 15
a A LaTex expression showing 12 over 15 - 12 over 15
b A LaTex expression showing 15 over 15 - 12 over 15
c A LaTex expression showing 4 over 15 - 12 over 15
6
Set up this fraction subtraction problem correctly
A LaTex expression showing 2 over 3 - 5 over 9
a A LaTex expression showing 20 over 30 - 15 over 30
b A LaTex expression showing 18 over 36 - 20 over 36
c A LaTex expression showing 6 over 9 - 5 over 9
7
Set up this fraction subtraction problem correctly
A LaTex expression showing 5 over 7 - 9 over 14
a A LaTex expression showing 10 over 14 - 9 over 14
b A LaTex expression showing 10 over 14 - 10 over 14
c A LaTex expression showing 75 over 105 - 63 over 105