Answers

Multiply 81/21 with 4/63

1^st number: 3 18/21, 2^nd number: 4/63

This multiplication involving fractions can also be rephrased as "What is 81/21 of 4/63?"

81/21 × 4/63 is 12/49.

Steps for multiplying fractions

1. Simply multiply the numerators and denominators separately:
2. 81/21 × 4/63 = 81 × 4/21 × 63 = 324/1323
3. After reducing the fraction, the answer is 12/49

MathStep (Works offline)

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

Related: ⁸¹/₂₁×⁸/₆₃ ⁸¹/₄₂×⁴/₆₃ ⁸¹/₂₁×¹²/₆₃ ⁸¹/₆₃×⁴/₆₃ ⁸¹/₂₁ײ⁰/₆₃ ⁸¹/₂₁ײ⁸/₆₃

Multiply Fractions Calculator