Multiply fractions
Name: _____________________ Date: __________
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1. 5 × 2/7 = ?
2. 3 × 5/8 = ?
3. 5 × 3/8 = ?
4. 4 × 4/5 = ?
5. 5 × 1/2 = ?
Answer key · Multiply fractions
1. 10/7
5 × 2/7 means 5 lots of 2/7.
Multiply the numerator by 5: 2 × 5 = 10. The denominator stays 7.
5 × 2/7 = 10/7
2. 15/8
3 × 5/8 means 3 lots of 5/8.
Multiply the numerator by 3: 5 × 3 = 15. The denominator stays 8.
3 × 5/8 = 15/8
3. 15/8
5 × 3/8 means 5 lots of 3/8.
Multiply the numerator by 5: 3 × 5 = 15. The denominator stays 8.
5 × 3/8 = 15/8
4. 16/5
4 × 4/5 means 4 lots of 4/5.
Multiply the numerator by 4: 4 × 4 = 16. The denominator stays 5.
4 × 4/5 = 16/5
5. 5/2
5 × 1/2 means 5 lots of 1/2.
Multiply the numerator by 5: 1 × 5 = 5. The denominator stays 2.
5 × 1/2 = 5/2
Try it together
Fold two equal strips of paper into different numbers of equal parts. Find two fractions that cover the same length.