Subtract 75/10 from 21/32
1st number: 21/32, 2nd number: 7 5/10
21/32 - 75/10 is -219/32.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 32 and 10 is 160
Next, find the equivalent fraction of both fractional numbers with denominator 160 - For the 1st fraction, since 32 × 5 = 160,
21/32 = 21 × 5/32 × 5 = 105/160 - Likewise, for the 2nd fraction, since 10 × 16 = 160,
75/10 = 75 × 16/10 × 16 = 1200/160 - Subtract the two like fractions:
105/160 - 1200/160 = 105 - 1200/160 = -1095/160 - After reducing the fraction, the answer is -219/32
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/32-75/10 21/64-75/10 21/32-75/20 63/32-75/10 21/96-75/10 21/32-75/30 21/32-75/50 21/32-75/70