This math topic focuses on fraction subtraction, particularly emphasizing the simplification of mixed fractions with one changed denominator. It targets setting up subtraction problems correctly by adjusting fractions to have common denominators before performing the subtraction. Each question involves converting mixed fractions to improper fractions and finding a common denominator to simplify the problem. The topic is organized progressively with escalating complexity, aimed at mastering the introductory aspects of adding and subtracting mixed fractions.

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

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

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Math worksheet on 'Fraction Subtraction - Problem Simplification - Mixed - One Changed Denominator (Level 2)'. Part of a broader unit on 'Fraction Addition and Subtraction, Mixed - Practice' Learn online: app.mobius.academy/math/units/fractions_addition_and_subtraction_mixed_practice/
1
Set up this fraction subtraction problem correctly
A LaTex expression showing 11 over 7 - 5 over 21
a A LaTex expression showing 22 over 21 - 5 over 21
b A LaTex expression showing 176 over 154 - 35 over 154
c A LaTex expression showing 24 over 21 - 5 over 21
2
Set up this fraction subtraction problem correctly
A LaTex expression showing 21 over 3 - 17 over 9
a A LaTex expression showing 19 over 9 - 16 over 9
b A LaTex expression showing 70 over 30 - 51 over 30
c A LaTex expression showing 21 over 9 - 16 over 9
3
Set up this fraction subtraction problem correctly
A LaTex expression showing 23 over 7 - 11 over 14
a A LaTex expression showing 34 over 14 - 15 over 14
b A LaTex expression showing 31 over 14 - 15 over 14
c A LaTex expression showing 255 over 105 - 112 over 105
4
Set up this fraction subtraction problem correctly
A LaTex expression showing 31 over 7 - 14 over 14
a A LaTex expression showing 330 over 105 - 133 over 105
b A LaTex expression showing 44 over 14 - 18 over 14
c A LaTex expression showing 43 over 14 - 18 over 14
5
Set up this fraction subtraction problem correctly
A LaTex expression showing 11 over 7 - 16 over 21
a A LaTex expression showing 189 over 168 - 128 over 168
b A LaTex expression showing 22 over 21 - 16 over 21
c A LaTex expression showing 24 over 21 - 16 over 21
6
Set up this fraction subtraction problem correctly
A LaTex expression showing 21 over 3 - 13 over 9
a A LaTex expression showing 19 over 9 - 12 over 9
b A LaTex expression showing 70 over 30 - 39 over 30
c A LaTex expression showing 21 over 9 - 12 over 9
7
Set up this fraction subtraction problem correctly
A LaTex expression showing 31 over 2 - 2 over 6
a A LaTex expression showing 19 over 6 - 2 over 6
b A LaTex expression showing 21 over 6 - 3 over 6
c A LaTex expression showing 21 over 6 - 2 over 6