Subtract 70/16 from 60/21
1st number: 2 18/21, 2nd number: 4 6/16
60/21 - 70/16 is -85/56.
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,
60/21 = 60 × 16/21 × 16 = 960/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
70/16 = 70 × 21/16 × 21 = 1470/336 - Subtract the two like fractions:
960/336 - 1470/336 = 960 - 1470/336 = -510/336 - After reducing the fraction, the answer is -85/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/42-70/16 60/21-70/32 60/63-70/16 60/21-70/48 60/21-70/80