This math topic focuses on advanced fraction subtraction, specifically identifying missing values in equations involving mixed fractions and adjusted denominators. It is structured as a series of problems where students must determine the correct fraction to complete an equation, comparing their answers among multiple choice options. Each equation involves subtracting one fraction from another or a whole number, with either the minuend or subtrahend left as a variable represented by a placeholder. The problems challenge students' understanding of fraction subtraction across different denominators, enhancing their skills in problem-solving within the context of fraction arithmetic.

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

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Fraction Subtraction - Missing Value (Mixed) - Two Changed Denominators Worksheet

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Fraction Subtraction - Missing Value (Mixed) - Two Changed Denominators
1
Find the fraction that makes this equation correct
A LaTex expression showing 11 over 3 \;-\;\ sub \ sub \ _ = 12 over 15
a A LaTex expression showing 12 over 17
b A LaTex expression showing 11 over 19
c A LaTex expression showing 1 over 5
d A LaTex expression showing 16 over 11
e A LaTex expression showing 14 over 15
f A LaTex expression showing 13 over 15
2
Find the fraction that makes this equation correct
A LaTex expression showing 11 over 7 \;-\;\ sub \ sub \ _ = 17 over 21
a A LaTex expression showing 1 over 3
b A LaTex expression showing 14 over 21
c A LaTex expression showing 13 over 23
d A LaTex expression showing 136 over 147
e A LaTex expression showing 25 over 147
f A LaTex expression showing 16 over 23
3
Find the fraction that makes this equation correct
A LaTex expression showing \ sub \ sub \ sub \ ;-\;1 over 2 = 15 over 6
a A LaTex expression showing 11 over 12
b A LaTex expression showing 24 over 5
c A LaTex expression showing 21 over 3
d A LaTex expression showing 12 over 7
e A LaTex expression showing 1
f A LaTex expression showing 2
4
Find the fraction that makes this equation correct
A LaTex expression showing 31 over 2 \;-\;\ sub \ sub \ _ = 39 over 22
a A LaTex expression showing 1 over 11
b A LaTex expression showing 1141 over 44
c A LaTex expression showing 41
d A LaTex expression showing 38 over 11
e A LaTex expression showing 219 over 29
f A LaTex expression showing 34 over 11
5
Find the fraction that makes this equation correct
A LaTex expression showing 21 over 2 \;-\;\ sub \ sub \ _ = 21 over 6
a A LaTex expression showing 1 over 3
b A LaTex expression showing 11 over 3
c A LaTex expression showing 55 over 12
d A LaTex expression showing 9
e A LaTex expression showing 15 over 6
f A LaTex expression showing 41 over 3
6
Find the fraction that makes this equation correct
A LaTex expression showing \ sub \ sub \ sub \ ;-\;1 over 2 = 5 over 6
a A LaTex expression showing 3
b A LaTex expression showing 11 over 3
c A LaTex expression showing 0
d A LaTex expression showing 5 over 12
e A LaTex expression showing 1 over 5
f A LaTex expression showing 1
7
Find the fraction that makes this equation correct
A LaTex expression showing 31 over 7 \;-\;\ sub \ sub \ _ = 29 over 14
a A LaTex expression showing 1 over 2
b A LaTex expression showing 26 over 7
c A LaTex expression showing 83 over 7
d A LaTex expression showing 12 over 9
e A LaTex expression showing 35 over 9
f A LaTex expression showing 29 over 14
8
Find the fraction that makes this equation correct
A LaTex expression showing \ sub \ sub \ sub \ ;-\;1 over 2 = 25 over 6
a A LaTex expression showing 9
b A LaTex expression showing 10
c A LaTex expression showing 2
d A LaTex expression showing 31 over 3
e A LaTex expression showing 3
f A LaTex expression showing 101 over 2