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Fraction Subtraction - Missing Value (Simple) - One Changed Denominator (Level 1)

This topic focuses on the skill of subtracting fractions, specifically identifying a missing value in a simple subtraction equation with one changed denominator. It requires the learner to solve for the unknown fraction in equations such as "1/2 - ? = 1/3". This is a fundamental component of the larger unit on introduction to addition and subtraction of fractions. Various possible answers are provided for the questions.

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

___  −  16=16\_\_\_\;-\;\frac{1}{6} = \frac{1}{6}

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 1)'. Part of a broader unit on 'Fraction Addition and Subtraction - Intro' Learn online: app.mobius.academy/math/units/fractions_addition_and_subtraction_intro/
1
Find the fraction that makes this equation correct
A LaTex expression showing 1 over 3 \;-\;\ sub \ sub \ _ = 2 over 9
a A LaTex expression showing 1 over 2
b A LaTex expression showing 2 over 3
c A LaTex expression showing 4 over 9
d A LaTex expression showing 3 over 11
e A LaTex expression showing 1
f A LaTex expression showing 1 over 9
2
Find the fraction that makes this equation correct
A LaTex expression showing \ sub \ sub \ sub \ ;-\;1 over 10 = 1 over 10
a A LaTex expression showing 2 over 5
b A LaTex expression showing 1 over 100
c A LaTex expression showing 1
d A LaTex expression showing 1 over 5
e A LaTex expression showing 5 over 11
f A LaTex expression showing 1 over 10
3
Find the fraction that makes this equation correct
A LaTex expression showing \ sub \ sub \ sub \ ;-\;1 over 9 = 2 over 9
a A LaTex expression showing 1 over 3
b A LaTex expression showing 5 over 9
c A LaTex expression showing 3 over 10
d A LaTex expression showing 2 over 81
e A LaTex expression showing 1 over 27
f A LaTex expression showing 2 over 13
4
Find the fraction that makes this equation correct
A LaTex expression showing \ sub \ sub \ sub \ ;-\;1 over 6 = 1 over 6
a A LaTex expression showing 1
b A LaTex expression showing 1 over 2
c A LaTex expression showing 1 over 36
d A LaTex expression showing 1 over 3
e A LaTex expression showing 2 over 5
f A LaTex expression showing 3 over 4
5
Find the fraction that makes this equation correct
A LaTex expression showing 1 over 5 \;-\;\ sub \ sub \ _ = 2 over 15
a A LaTex expression showing 1 over 15
b A LaTex expression showing 7 over 16
c A LaTex expression showing 1 over 25
d A LaTex expression showing 2 over 11
e A LaTex expression showing 3 over 5
f A LaTex expression showing 1 over 5
6
Find the fraction that makes this equation correct
A LaTex expression showing 1 over 2 \;-\;\ sub \ sub \ _ = 1 over 4
a A LaTex expression showing 3 over 5
b A LaTex expression showing 3 over 4
c A LaTex expression showing 1 over 2
d A LaTex expression showing 1 over 8
e A LaTex expression showing 1 over 4
f A LaTex expression showing 11 over 4
7
Find the fraction that makes this equation correct
A LaTex expression showing \ sub \ sub \ sub \ ;-\;1 over 6 = 1 over 3
a A LaTex expression showing 2 over 5
b A LaTex expression showing 1 over 18
c A LaTex expression showing 1 over 9
d A LaTex expression showing 2 over 7
e A LaTex expression showing 1 over 2
f A LaTex expression showing 1 over 3