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Fraction Subtraction - Missing Value (Simple) - One Changed Denominator (Level 3)

This math topic focuses on the practice of fraction subtraction where the denominator is altered in some manner. More specifically, it addresses the challenge of finding missing values in simple fraction subtraction equations. These problems involve recognizing the relationship between numerators and denominators and using this understanding to identify the fraction that would make a given equation correct. It fits within a broader study unit on the addition and subtraction of fractions.

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

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Sub. Missing Value (Simple) - One Changed Denominator

Complete these online problems with 80% or 4 correct answers in a row. Results are immediate.


Find the fraction that makes this equation correct

57  −  ___=17\frac{5}{7}\;-\;\_\_\_ = \frac{1}{7}

Fraction Subtraction - Missing Value (Simple) - One Changed Denominator Worksheet

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Math worksheet on 'Fraction Subtraction - Missing Value (Simple) - 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
Find the fraction that makes this equation correct
A LaTex expression showing \ sub \ sub \ sub \ ;-\;2 over 14 = 3 over 7
a A LaTex expression showing 5 over 14
b A LaTex expression showing 5 over 98
c A LaTex expression showing 18 over 9
d A LaTex expression showing 5 over 6
e A LaTex expression showing 1 over 2
f A LaTex expression showing 4 over 7
2
Find the fraction that makes this equation correct
A LaTex expression showing 4 over 7 \;-\;\ sub \ sub \ _ = 3 over 7
a A LaTex expression showing 5 over 8
b A LaTex expression showing 1
c A LaTex expression showing 12 over 49
d A LaTex expression showing 1 over 4
e A LaTex expression showing 1 over 7
f A LaTex expression showing 2 over 9
3
Find the fraction that makes this equation correct
A LaTex expression showing 5 over 7 \;-\;\ sub \ sub \ _ = 1 over 7
a A LaTex expression showing 11 over 3
b A LaTex expression showing 2 over 3
c A LaTex expression showing 4 over 7
d A LaTex expression showing 6 over 7
e A LaTex expression showing 6 over 49
f A LaTex expression showing 3 over 7
4
Find the fraction that makes this equation correct
A LaTex expression showing 2 over 3 \;-\;\ sub \ sub \ _ = 2 over 9
a A LaTex expression showing 5 over 9
b A LaTex expression showing 0
c A LaTex expression showing 4 over 9
d A LaTex expression showing 4 over 27
e A LaTex expression showing 2 over 9
f A LaTex expression showing 11 over 3
5
Find the fraction that makes this equation correct
A LaTex expression showing 4 over 5 \;-\;\ sub \ sub \ _ = 3 over 5
a A LaTex expression showing 7 over 25
b A LaTex expression showing 2 over 9
c A LaTex expression showing 12 over 5
d A LaTex expression showing 1 over 2
e A LaTex expression showing 1 over 5
f A LaTex expression showing 2 over 3
6
Find the fraction that makes this equation correct
A LaTex expression showing \ sub \ sub \ sub \ ;-\;6 over 14 = 2 over 7
a A LaTex expression showing 6 over 49
b A LaTex expression showing 4 over 7
c A LaTex expression showing 5 over 7
d A LaTex expression showing 4 over 49
e A LaTex expression showing 11 over 7
f A LaTex expression showing 1 over 7
7
Find the fraction that makes this equation correct
A LaTex expression showing \ sub \ sub \ sub \ ;-\;8 over 14 = 0
a A LaTex expression showing 1
b A LaTex expression showing 4 over 7
c A LaTex expression showing 15 over 9
d A LaTex expression showing 0
e A LaTex expression showing 5
f A LaTex expression showing 2