This math topic focuses on practicing fraction subtraction with a missing value in mixed numbers. Specifically, problems require solving for an unknown fraction in subtraction equations where one denominator has been changed. The topic is part of a larger introductory unit on mixed number addition and subtraction. Each problem provides a subtraction equation and a set of answer choices, with one correct fraction that brings balance to the equation, enhancing skills in manipulating and understanding fractions within nonlinear equations.

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

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

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Math worksheet on 'Fraction Subtraction - Missing Value (Mixed) - One Changed Denominator (Level 1)'. Part of a broader unit on 'Fraction Addition and Subtraction, Mixed - Intro' Learn online: app.mobius.academy/math/units/fractions_addition_and_subtraction_mixed_intro/
1
Find the fraction that makes this equation correct
A LaTex expression showing 21 over 3 \;-\;\ sub \ sub \ _ = 22 over 9
a A LaTex expression showing 13 over 13
b A LaTex expression showing 9
c A LaTex expression showing 1 over 9
d A LaTex expression showing 22 over 9
e A LaTex expression showing 55 over 27
f A LaTex expression showing 1
2
Find the fraction that makes this equation correct
A LaTex expression showing \ sub \ sub \ sub \ ;-\;1 over 10 = 21 over 10
a A LaTex expression showing 21 over 5
b A LaTex expression showing 21 over 100
c A LaTex expression showing 11 over 50
d A LaTex expression showing 13 over 5
e A LaTex expression showing 29 over 11
f A LaTex expression showing 35 over 6
3
Find the fraction that makes this equation correct
A LaTex expression showing \ sub \ sub \ sub \ ;-\;1 over 9 = 12 over 9
a A LaTex expression showing 11 over 81
b A LaTex expression showing 4 over 27
c A LaTex expression showing 1
d A LaTex expression showing 11 over 9
e A LaTex expression showing 21 over 4
f A LaTex expression showing 11 over 3
4
Find the fraction that makes this equation correct
A LaTex expression showing \ sub \ sub \ sub \ ;-\;1 over 4 = 31 over 4
a A LaTex expression showing 33 over 4
b A LaTex expression showing 32 over 5
c A LaTex expression showing 31 over 2
d A LaTex expression showing 13 over 16
e A LaTex expression showing 21 over 7
f A LaTex expression showing 6
5
Find the fraction that makes this equation correct
A LaTex expression showing 11 over 5 \;-\;\ sub \ sub \ _ = 12 over 15
a A LaTex expression showing 19 over 25
b A LaTex expression showing 43 over 5
c A LaTex expression showing 1 over 15
d A LaTex expression showing 13 over 4
e A LaTex expression showing 18 over 15
f A LaTex expression showing 17 over 13
6
Find the fraction that makes this equation correct
A LaTex expression showing \ sub \ sub \ sub \ ;-\;1 over 6 = 21 over 3
a A LaTex expression showing 4 over 9
b A LaTex expression showing 31 over 4
c A LaTex expression showing 14 over 7
d A LaTex expression showing 11 over 3
e A LaTex expression showing 21 over 2
f A LaTex expression showing 7 over 18
7
Find the fraction that makes this equation correct
A LaTex expression showing 11 over 3 \;-\;\ sub \ sub \ _ = 11 over 6
a A LaTex expression showing 11 over 2
b A LaTex expression showing 1
c A LaTex expression showing 1 over 6
d A LaTex expression showing 12 over 5
e A LaTex expression showing 11 over 18
f A LaTex expression showing 1 over 2