Subtract 81/60 from 2/72
1st number: 2/72, 2nd number: 1 21/60
2/72 - 81/60 is -119/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 72 and 60 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 72 × 5 = 360,
2/72 = 2 × 5/72 × 5 = 10/360 - Likewise, for the 2nd fraction, since 60 × 6 = 360,
81/60 = 81 × 6/60 × 6 = 486/360 - Subtract the two like fractions:
10/360 - 486/360 = 10 - 486/360 = -476/360 - After reducing the fraction, the answer is -119/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/72-81/60 6/72-81/60 10/72-81/60 14/72-81/60