Subtract 70/27 from 20/36
1st number: 20/36, 2nd number: 2 16/27
20/36 - 70/27 is -55/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 27 is 108
Next, find the equivalent fraction of both fractional numbers with denominator 108 - For the 1st fraction, since 36 × 3 = 108,
20/36 = 20 × 3/36 × 3 = 60/108 - Likewise, for the 2nd fraction, since 27 × 4 = 108,
70/27 = 70 × 4/27 × 4 = 280/108 - Subtract the two like fractions:
60/108 - 280/108 = 60 - 280/108 = -220/108 - After reducing the fraction, the answer is -55/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/36-70/27 20/72-70/27 20/36-70/54 60/36-70/27 20/36-70/81