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Fraction Addition - Missing Value (Simple) - Two Changed Denominators (Level 2)

This math topic focuses on advanced fraction addition and subtraction, specifically exercises involving finding the missing value in equations with altered denominators. Each question presents a partially-completed fraction addition equation requiring students to determine the missing fraction that would balance the equation. The fractions involved frequently have different denominators, which necessitates skills in finding common denominators and simplifying complex fractions. This set of problems helps enhance understanding of fraction operations and exercises critical thinking in resolving fractional equivalences.

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

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Add. Missing Value (Simple) - Two Changed Denominators

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

Find the fraction that makes this equation correct

___  +  12=1314 \_\_\_ \;+\;\frac{1}{2} = \frac{13}{14}

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

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Math worksheet on 'Fraction Addition - Missing Value (Simple) - Two Changed Denominators (Level 2)'. Part of a broader unit on 'Fraction Addition and Subtraction - Advanced' Learn online: app.mobius.academy/math/units/fractions_addition_and_subtraction_advanced/
1
Find the fraction that makes this equation correct
A LaTex expression showing \ sub \ sub \ _ \;+\;4 over 5 = 17 over 15
a A LaTex expression showing 13 over 19
b A LaTex expression showing 16 over 11
c A LaTex expression showing 1 over 3
d A LaTex expression showing 7 over 25
e A LaTex expression showing 68 over 75
f A LaTex expression showing 12 over 5
2
Find the fraction that makes this equation correct
A LaTex expression showing \ sub \ sub \ _ \;+\;8 over 11 = 35 over 33
a A LaTex expression showing 15 over 33
b A LaTex expression showing 1
c A LaTex expression showing 1 over 3
d A LaTex expression showing 43 over 363
e A LaTex expression showing 11 over 11
f A LaTex expression showing 310 over 11
3
Find the fraction that makes this equation correct
A LaTex expression showing 2 over 3 \;+\; \ sub \ sub \ _ = 25 over 33
a A LaTex expression showing 8 over 11
b A LaTex expression showing 3 over 11
c A LaTex expression showing 9 over 11
d A LaTex expression showing 1 over 11
e A LaTex expression showing 4 over 5
f A LaTex expression showing 1
4
Find the fraction that makes this equation correct
A LaTex expression showing 3 over 5 \;+\; \ sub \ sub \ _ = 38 over 55
a A LaTex expression showing 34 over 55
b A LaTex expression showing 1 over 11
c A LaTex expression showing 36 over 55
d A LaTex expression showing 43 over 58
e A LaTex expression showing 114 over 275
f A LaTex expression showing 41 over 275
5
Find the fraction that makes this equation correct
A LaTex expression showing \ sub \ sub \ _ \;+\;1 over 5 = 13 over 15
a A LaTex expression showing 11 over 8
b A LaTex expression showing 8 over 15
c A LaTex expression showing 13 over 15
d A LaTex expression showing 13 over 75
e A LaTex expression showing 14 over 75
f A LaTex expression showing 2 over 3
6
Find the fraction that makes this equation correct
A LaTex expression showing \ sub \ sub \ _ \;+\;9 over 11 = 38 over 33
a A LaTex expression showing 11 over 33
b A LaTex expression showing 47 over 363
c A LaTex expression showing 11 over 35
d A LaTex expression showing 114 over 33
e A LaTex expression showing 11 over 36
f A LaTex expression showing 1 over 3
7
Find the fraction that makes this equation correct
A LaTex expression showing \ sub \ sub \ _ \;+\;2 over 3 = 17 over 21
a A LaTex expression showing 20 over 23
b A LaTex expression showing 19 over 21
c A LaTex expression showing 5 over 7
d A LaTex expression showing 17 over 18
e A LaTex expression showing 1 over 7
f A LaTex expression showing 34 over 63