5.NF.1: Adding and Subtracting Fractions

I can add and subtract fractions with unlike denominators by replacing given fractions with equivalent fractions.

Problem 1

Add: 1/2 + 1/4 = ? 💡 Hint: Find a common denominator. 1/2 = 2/4, so 2/4 + 1/4 = 3/4
Answer:

Problem 2

Subtract: 3/4 - 1/2 = ? 💡 Hint: 1/2 = 2/4, so 3/4 - 2/4 = 1/4
Answer:

Problem 3

Calculate: 1/3 + 1/6 = ? 💡 Hint: 1/3 = 2/6, so 2/6 + 1/6 = 3/6 = 1/2
Answer:

Problem 4

Find: 2/3 - 1/6 = ? 💡 Hint: 2/3 = 4/6, so 4/6 - 1/6 = 3/6 = 1/2
Answer:

Problem 5

Add: 1/4 + 1/8 = ? 💡 Hint: 1/4 = 2/8, so 2/8 + 1/8 = 3/8
Answer:

Problem 6

Subtract: 5/6 - 1/3 = ? 💡 Hint: 1/3 = 2/6, so 5/6 - 2/6 = 3/6 = 1/2
Answer:

Problem 7

Calculate: 1/5 + 2/10 = ? 💡 Hint: 1/5 = 2/10, so 2/10 + 2/10 = 4/10 = 2/5
Answer:

Problem 8

Find: 3/5 - 1/10 = ? 💡 Hint: 3/5 = 6/10, so 6/10 - 1/10 = 5/10 = 1/2
Answer:

Problem 9

Add: 2/5 + 1/10 = ? 💡 Hint: Find the common denominator first.
Answer:

Problem 10

Subtract: 7/8 - 1/4 = ? 💡 Hint: 1/4 = 2/8, so 7/8 - 2/8 = 5/8
Answer: