This math topic focuses on practicing skills in fraction addition with a focus on finding the missing value, specifically when both fractions have different denominators. It is designed for advanced learners who are already familiar with mixed number operations and how to manipulate and add fractions with unlike denominators. Each question requires the student to identify the correct fraction needed to complete an addition equation accurately. The problems provide a diverse set of fraction combinations and outcomes which help in enhancing the understanding of fractional addition and numerical relationship concepts.

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

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

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Fraction Addition - Missing Value (Mixed) - Two Changed Denominators
1
Find the fraction that makes this equation correct
A LaTex expression showing \ sub \ sub \ _ \;+\;11 over 3 = 38 over 15
a A LaTex expression showing 38 over 15
b A LaTex expression showing 218 over 19
c A LaTex expression showing 21 over 5
d A LaTex expression showing 32 over 5
e A LaTex expression showing 34 over 5
f A LaTex expression showing 33 over 17
2
Find the fraction that makes this equation correct
A LaTex expression showing \ sub \ sub \ _ \;+\;2 over 5 = 29 over 10
a A LaTex expression showing 22 over 5
b A LaTex expression showing 31 over 10
c A LaTex expression showing 6
d A LaTex expression showing 111 over 13
e A LaTex expression showing 31 over 50
f A LaTex expression showing 21 over 2
3
Find the fraction that makes this equation correct
A LaTex expression showing 21 over 2 \;+\; \ sub \ sub \ _ = 35 over 14
a A LaTex expression showing 34 over 7
b A LaTex expression showing 25 over 6
c A LaTex expression showing 16 over 7
d A LaTex expression showing 33 over 7
e A LaTex expression showing 6 over 7
f A LaTex expression showing 211 over 19
4
Find the fraction that makes this equation correct
A LaTex expression showing 31 over 2 \;+\; \ sub \ sub \ _ = 41 over 6
a A LaTex expression showing 22 over 5
b A LaTex expression showing 16
c A LaTex expression showing 45 over 6
d A LaTex expression showing 51 over 3
e A LaTex expression showing 2 over 3
f A LaTex expression showing 42 over 5
5
Find the fraction that makes this equation correct
A LaTex expression showing \ sub \ sub \ _ \;+\;1 over 3 = 132 over 33
a A LaTex expression showing 22
b A LaTex expression showing 21 over 5
c A LaTex expression showing 22 over 33
d A LaTex expression showing 21 over 30
e A LaTex expression showing 65 over 99
f A LaTex expression showing 17 over 11
6
Find the fraction that makes this equation correct
A LaTex expression showing \ sub \ sub \ _ \;+\;26 over 7 = 65 over 14
a A LaTex expression showing 62 over 7
b A LaTex expression showing 64 over 7
c A LaTex expression showing 214 over 17
d A LaTex expression showing 63 over 7
e A LaTex expression showing 188 over 49
f A LaTex expression showing 31 over 2
7
Find the fraction that makes this equation correct
A LaTex expression showing \ sub \ sub \ _ \;+\;1 over 2 = 211 over 14
a A LaTex expression showing 13 over 7
b A LaTex expression showing 111 over 28
c A LaTex expression showing 211 over 15
d A LaTex expression showing 20
e A LaTex expression showing 25 over 7
f A LaTex expression showing 22 over 7
8
Find the fraction that makes this equation correct
A LaTex expression showing 21 over 3 \;+\; \ sub \ sub \ _ = 35 over 6
a A LaTex expression showing 41 over 3
b A LaTex expression showing 817 over 18
c A LaTex expression showing 21 over 2
d A LaTex expression showing 3
e A LaTex expression showing 11 over 2
f A LaTex expression showing 10