Subtract 75/21 from 10/16
1st number: 10/16, 2nd number: 3 12/21
10/16 - 75/21 is -165/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 21 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 16 × 21 = 336,
10/16 = 10 × 21/16 × 21 = 210/336 - Likewise, for the 2nd fraction, since 21 × 16 = 336,
75/21 = 75 × 16/21 × 16 = 1200/336 - Subtract the two like fractions:
210/336 - 1200/336 = 210 - 1200/336 = -990/336 - After reducing the fraction, the answer is -165/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/16-75/21 10/32-75/21 10/16-75/42 30/16-75/21 10/48-75/21 10/16-75/63 50/16-75/21 10/80-75/21 70/16-75/21