Multiply 10/15 with 21/40
This multiplication involving fractions can also be rephrased as "What is 10/15 of 21/40?"
1015 × 2140 is 720.
Steps for multiplying fractions
- Simply multiply the numerators and denominators separately:
- 1015 × 2140 = 10 × 2115 × 40 = 210600
- After reducing the fraction, the answer is 720
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/15×21/40 10/15×42/40 10/30×21/40 10/15×21/80 30/15×21/40 10/15×63/40 10/45×21/40 50/15×21/40 10/75×21/40 70/15×21/40