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Fraction Addition - Basic (No Simplifying Answers) - Two Changed Denominators (Level 3)

This math topic is about basic fraction addition, with a focus on problems that involve two different denominators. Learners do not need to simplify answers. The skill is part of a larger unit on advanced fraction addition and subtraction. The problems include addition of fractions with denominators such as 5 and 11, 5 and 7, 7 and 3, and so forth. The topic offers various possible answers to each problem for learners to select the correct one.

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

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Add. Basic (No Simplifying Answers) - Two Changed Denominators

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


Add these fractions, but don't simplify the answer

511+47\frac{5}{11} + \frac{4}{7}

Fraction Addition - Basic (No Simplifying Answers) - Two Changed Denominators Worksheet

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Math worksheet on 'Fraction Addition - Basic (No Simplifying Answers) - Two Changed Denominators (Level 3)'. Part of a broader unit on 'Fraction Addition and Subtraction - Advanced' Learn online: app.mobius.academy/math/units/fractions_addition_and_subtraction_advanced/
1
Add these fractions, but don't simplify the answer
A LaTex expression showing 2 over 3 + 3 over 5
a A LaTex expression showing 0
b A LaTex expression showing 6 over 15
c A LaTex expression showing 5 over 15
d A LaTex expression showing 19 over 15
e A LaTex expression showing 17 over 15
f A LaTex expression showing 15 over 15
2
Add these fractions, but don't simplify the answer
A LaTex expression showing 6 over 7 + 9 over 11
a A LaTex expression showing 54 over 77
b A LaTex expression showing 81 over 77
c A LaTex expression showing 77 over 77
d A LaTex expression showing 22 over 77
e A LaTex expression showing 129 over 77
f A LaTex expression showing 165 over 77
3
Add these fractions, but don't simplify the answer
A LaTex expression showing 6 over 7 + 4 over 5
a A LaTex expression showing 45 over 35
b A LaTex expression showing 58 over 35
c A LaTex expression showing 50 over 35
d A LaTex expression showing 10 over 35
e A LaTex expression showing 24 over 35
f A LaTex expression showing 70 over 35
4
Add these fractions, but don't simplify the answer
A LaTex expression showing 8 over 11 + 5 over 7
a A LaTex expression showing 42 over 77
b A LaTex expression showing 63 over 77
c A LaTex expression showing 111 over 77
d A LaTex expression showing 35 over 77
e A LaTex expression showing 40 over 77
f A LaTex expression showing 16 over 77
5
Add these fractions, but don't simplify the answer
A LaTex expression showing 6 over 7 + 2 over 3
a A LaTex expression showing 18 over 21
b A LaTex expression showing 26 over 21
c A LaTex expression showing 12 over 21
d A LaTex expression showing 24 over 21
e A LaTex expression showing 56 over 21
f A LaTex expression showing 32 over 21
6
Add these fractions, but don't simplify the answer
A LaTex expression showing 6 over 7 + 7 over 11
a A LaTex expression showing 99 over 77
b A LaTex expression showing 115 over 77
c A LaTex expression showing 110 over 77
d A LaTex expression showing 143 over 77
e A LaTex expression showing 42 over 77
f A LaTex expression showing 51 over 77
7
Add these fractions, but don't simplify the answer
A LaTex expression showing 4 over 7 + 4 over 5
a A LaTex expression showing 8 over 35
b A LaTex expression showing 40 over 35
c A LaTex expression showing 43 over 35
d A LaTex expression showing 48 over 35
e A LaTex expression showing 15 over 35
f A LaTex expression showing 28 over 35