Subtract 70/16 from 14/21
1st number: 14/21, 2nd number: 4 6/16
14/21 - 70/16 is -89/24.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 21 × 16 = 336,
14/21 = 14 × 16/21 × 16 = 224/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
70/16 = 70 × 21/16 × 21 = 1470/336 - Subtract the two like fractions:
224/336 - 1470/336 = 224 - 1470/336 = -1246/336 - After reducing the fraction, the answer is -89/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 28/21-70/16 14/42-70/16 14/21-70/32 42/21-70/16 14/63-70/16 14/21-70/48 70/21-70/16 14/21-70/80 98/21-70/16