Subtract 35/21 from 60/80
1st number: 60/80, 2nd number: 1 14/21
60/80 - 35/21 is -11/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 80 and 21 is 1680
Next, find the equivalent fraction of both fractional numbers with denominator 1680 - For the 1st fraction, since 80 × 21 = 1680,
60/80 = 60 × 21/80 × 21 = 1260/1680 - Likewise, for the 2nd fraction, since 21 × 80 = 1680,
35/21 = 35 × 80/21 × 80 = 2800/1680 - Subtract the two like fractions:
1260/1680 - 2800/1680 = 1260 - 2800/1680 = -1540/1680 - After reducing the fraction, the answer is -11/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/80-70/21 60/80-35/42 60/80-35/63