Answers

Multiply 21/84 with 90/42

1^st number: 21/84, 2^nd number: 2 6/42

This multiplication involving fractions can also be rephrased as "What is 21/84 of 2 6/42?"

21/84 × 90/42 is 15/28.

Steps for multiplying fractions

1. Simply multiply the numerators and denominators separately:
2. 21/84 × 90/42 = 21 × 90/84 × 42 = 1890/3528
3. After reducing the fraction, the answer is 15/28

MathStep (Works offline)

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

Related: ⁴²/₈₄×⁹⁰/₄₂ ²¹/₈₄×⁹⁰/₈₄ ⁶³/₈₄×⁹⁰/₄₂

Multiply Fractions Calculator