Subtract 70/27 from 20/15
1st number: 1 5/15, 2nd number: 2 16/27
20/15 - 70/27 is -34/27.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 27 is 135
Next, find the equivalent fraction of both fractional numbers with denominator 135 - For the 1st fraction, since 15 × 9 = 135,
20/15 = 20 × 9/15 × 9 = 180/135 - Likewise, for the 2nd fraction, since 27 × 5 = 135,
70/27 = 70 × 5/27 × 5 = 350/135 - Subtract the two like fractions:
180/135 - 350/135 = 180 - 350/135 = -170/135 - After reducing the fraction, the answer is -34/27
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/15-70/27 20/30-70/27 20/15-70/54 60/15-70/27 20/45-70/27 20/15-70/81 20/75-70/27