Worksheet: Adding Fractions with Unlike Denominators

In this worksheet, we will practice adding two proper fractions with different denominators by finding common denominators and writing the answer in simplest form.

Q1:

Calculate 14+13.

  • A 1 3
  • B 1 3 4
  • C 4 1 5
  • D 7 1 2

Q2:

Find the result of 115+12+45 giving the answer in its simplest form.

  • A 1 1 1 3 0
  • B 1 1 2 3 1
  • C 2 1 1 3 0
  • D 7 2 7
  • E 1 9 4 2

Q3:

Find the value of 𝑥+𝑧 given 𝑥=23 and 𝑧=12.

  • A 1 6
  • B6
  • C 6 7
  • D 7 6

Q4:

Complete the following: 29+=23.

  • A 5 9
  • B 2 3
  • C 1 3
  • D 4 9

Q5:

Calculate 16+58+12. Give your answer as a mixed number.

  • A 1 2 4 7
  • B 1 2 4 3 0
  • C 1 7 2 4
  • D 1 3 0 2 4

Q6:

Use the table to find the fraction of the population that has either type O or type A blood.

Blood Type O A B AB
Fraction of Population 1 1 2 5 2 1 5 0 1 1 0 1 2 5
  • A 3 2 7 5
  • B 1 3 2 5
  • C 2 7 5 0
  • D 4 3 5 0
  • E 1 2 2 5

Q7:

Evaluate 718+415+19 giving the answer in its simplest form.

  • A 2 3 3 0
  • B 1 7 4 5
  • C 5 9 9 0
  • D 3 7 4 5

Q8:

Evaluate 13+13+217 giving the answer in its simplest form.

  • A 2 5 7 3 0 6
  • B 4 0 5 1
  • C 2 3 5 1
  • D 2 3

Q9:

Evaluate the expression 25+49+49710.

  • A 3 1 0
  • B 4 1 0
  • C 3 1 0
  • D 5 5

Q10:

A recipe for banana bread requires 429 cups of flour, while a recipe for soda bread requires 245 cups of flour. How much more flour is needed to bake banana bread than soda bread?

  • A 7 1 4 5 c
  • B 1 9 4 5 c
  • C 1 0 2 3 c
  • D 2 1 0 2 3 c
  • E 1 1 9 4 5 c

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