Subtract 80/36 from 21/60
1st number: 21/60, 2nd number: 2 8/36
21/60 - 80/36 is -337/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 60 × 3 = 180,
21/60 = 21 × 3/60 × 3 = 63/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
80/36 = 80 × 5/36 × 5 = 400/180 - Subtract the two like fractions:
63/180 - 400/180 = 63 - 400/180 = -337/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/60-80/36 21/60-80/72 63/60-80/36