Answers

Multiply 21/45 with 75/84

This multiplication involving fractions can also be rephrased as "What is 21/45 of 75/84?"

21/45 × 75/84 is 5/12.

Steps for multiplying fractions

1. Simply multiply the numerators and denominators separately:
2. 21/45 × 75/84 = 21 × 75/45 × 84 = 1575/3780
3. After reducing the fraction, the answer is 5/12

MathStep (Works offline)

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

Related: ⁴²/₄₅×⁷⁵/₈₄ ²¹/₉₀×⁷⁵/₈₄ ⁶³/₄₅×⁷⁵/₈₄

Multiply Fractions Calculator