Subtract 81/30 from 2/36
1st number: 2/36, 2nd number: 2 21/30
2/36 - 81/30 is -119/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 30 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 36 × 5 = 180,
2/36 = 2 × 5/36 × 5 = 10/180 - Likewise, for the 2nd fraction, since 30 × 6 = 180,
81/30 = 81 × 6/30 × 6 = 486/180 - Subtract the two like fractions:
10/180 - 486/180 = 10 - 486/180 = -476/180 - After reducing the fraction, the answer is -119/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/36-81/30 2/72-81/30 2/36-81/60 6/36-81/30 2/36-81/90 10/36-81/30 14/36-81/30