Answers

Multiply 15/40 with 20/81

This multiplication involving fractions can also be rephrased as "What is 15/40 of 20/81?"

15/40 × 20/81 is 5/54.

Steps for multiplying fractions

1. Simply multiply the numerators and denominators separately:
2. 15/40 × 20/81 = 15 × 20/40 × 81 = 300/3240
3. After reducing the fraction, the answer is 5/54

MathStep (Works offline)

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

Related: ³⁰/₄₀ײ⁰/₈₁ ¹⁵/₄₀×⁴⁰/₈₁ ¹⁵/₈₀ײ⁰/₈₁ ⁴⁵/₄₀ײ⁰/₈₁ ¹⁵/₄₀×⁶⁰/₈₁ ⁷⁵/₄₀ײ⁰/₈₁

Multiply Fractions Calculator