Answers

Multiply 80/42 with 81/21

1^st number: 1 38/42, 2^nd number: 3 18/21

This multiplication involving fractions can also be rephrased as "What is 80/42 of 3 18/21?"

80/42 × 81/21 is 360/49.

Steps for multiplying fractions

1. Simply multiply the numerators and denominators separately:
2. 80/42 × 81/21 = 80 × 81/42 × 21 = 6480/882
3. After reducing the fraction, the answer is 360/49
4. In mixed form: 717/49

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related: ⁸⁰/₈₄×⁸¹/₂₁ ⁸⁰/₄₂×⁸¹/₄₂ ⁸⁰/₄₂×⁸¹/₆₃

Multiply Fractions Calculator