Answers

Multiply 15/81 with 42/90

This multiplication involving fractions can also be rephrased as "What is 15/81 of 42/90?"

15/81 × 42/90 is 7/81.

Steps for multiplying fractions

1. Simply multiply the numerators and denominators separately:
2. 15/81 × 42/90 = 15 × 42/81 × 90 = 630/7290
3. After reducing the fraction, the answer is 7/81

MathStep (Works offline)

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

Related: ³⁰/₈₁×⁴²/₉₀ ¹⁵/₈₁×⁸⁴/₉₀ ⁴⁵/₈₁×⁴²/₉₀ ⁷⁵/₈₁×⁴²/₉₀

Multiply Fractions Calculator