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.

more
View

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

Mobius Math Academy logo
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 7 + 2 over 5
a A LaTex expression showing 5 over 35
b A LaTex expression showing 11 over 35
c A LaTex expression showing 24 over 35
d A LaTex expression showing 4 over 35
e A LaTex expression showing 20 over 35
f A LaTex expression showing 28 over 35
2
Add these fractions, but don't simplify the answer
A LaTex expression showing 3 over 7 + 2 over 3
a A LaTex expression showing 23 over 21
b A LaTex expression showing 21 over 21
c A LaTex expression showing 3 over 21
d A LaTex expression showing 14 over 21
e A LaTex expression showing 35 over 21
f A LaTex expression showing 15 over 21
3
Add these fractions, but don't simplify the answer
A LaTex expression showing 4 over 5 + 8 over 11
a A LaTex expression showing 55 over 55
b A LaTex expression showing 32 over 55
c A LaTex expression showing 60 over 55
d A LaTex expression showing 63 over 55
e A LaTex expression showing 11 over 55
f A LaTex expression showing 84 over 55
4
Add these fractions, but don't simplify the answer
A LaTex expression showing 3 over 7 + 9 over 11
a A LaTex expression showing 96 over 77
b A LaTex expression showing 134 over 77
c A LaTex expression showing 77 over 77
d A LaTex expression showing 27 over 77
e A LaTex expression showing 30 over 77
f A LaTex expression showing 132 over 77
5
Add these fractions, but don't simplify the answer
A LaTex expression showing 2 over 7 + 10 over 11
a A LaTex expression showing 0
b A LaTex expression showing 12 over 77
c A LaTex expression showing 33 over 77
d A LaTex expression showing 19 over 77
e A LaTex expression showing 84 over 77
f A LaTex expression showing 92 over 77
6
Add these fractions, but don't simplify the answer
A LaTex expression showing 2 over 5 + 2 over 11
a A LaTex expression showing 4 over 55
b A LaTex expression showing 44 over 55
c A LaTex expression showing 32 over 55
d A LaTex expression showing 27 over 55
e A LaTex expression showing 55 over 55
f A LaTex expression showing 20 over 55
7
Add these fractions, but don't simplify the answer
A LaTex expression showing 2 over 3 + 4 over 11
a A LaTex expression showing 61 over 33
b A LaTex expression showing 34 over 33
c A LaTex expression showing 33 over 33
d A LaTex expression showing 66 over 33
e A LaTex expression showing 18 over 33
f A LaTex expression showing 8 over 33