Subtract 8/70 from 21/32
21/32 - 8/70 is 607/1120.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 70 is 1120
Next, find the equivalent fraction of both fractional numbers with denominator 1120 - For the 1st fraction, since 32 × 35 = 1120,
21/32 = 21 × 35/32 × 35 = 735/1120 - Likewise, for the 2nd fraction, since 70 × 16 = 1120,
8/70 = 8 × 16/70 × 16 = 128/1120 - Subtract the two like fractions:
735/1120 - 128/1120 = 735 - 128/1120 = 607/1120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/32-8/70 21/32-16/70 21/64-8/70 63/32-8/70 21/32-24/70 21/96-8/70 21/32-40/70 21/32-56/70