15/4 times 21/5

15/4 × 21/5
=
63 4
Mixed Number: 15 3/4
Decimal: 15.75
Percentage: 1575%

Step-by-Step Solution

  1. 1
    Multiply numerators
    15 × 21 = 315
  2. 2
    Multiply denominators
    4 × 5 = 20
  3. 3
    Write result
    315/20
  4. 4
    Simplify
    315/20 = 63/4

How to Multiply Fractions

Multiplying fractions is straightforward — multiply the numerators together and the denominators together. No common denominator needed! Just simplify the result.

Try Another Calculation