Answers

Multiply 21/5 with 20/81

1^st number: 4 1/5, 2^nd number: 20/81

This multiplication involving fractions can also be rephrased as "What is 21/5 of 20/81?"

21/5 × 20/81 is 28/27.

Steps for multiplying fractions

1. Simply multiply the numerators and denominators separately:
2. 21/5 × 20/81 = 21 × 20/5 × 81 = 420/405
3. After reducing the fraction, the answer is 28/27
4. In mixed form: 11/27

MathStep (Works offline)

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

Related: ⁴²/₅ײ⁰/₈₁ ²¹/₅×⁴⁰/₈₁ ²¹/₁₀ײ⁰/₈₁ ⁶³/₅ײ⁰/₈₁ ²¹/₅×⁶⁰/₈₁ ²¹/₁₅ײ⁰/₈₁ ²¹/₂₅ײ⁰/₈₁ ²¹/₃₅ײ⁰/₈₁

Multiply Fractions Calculator