Subtract 70/15 from 27/56
1st number: 27/56, 2nd number: 4 10/15
27/56 - 70/15 is -703/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 15 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 56 × 15 = 840,
27/56 = 27 × 15/56 × 15 = 405/840 - Likewise, for the 2nd fraction, since 15 × 56 = 840,
70/15 = 70 × 56/15 × 56 = 3920/840 - Subtract the two like fractions:
405/840 - 3920/840 = 405 - 3920/840 = -3515/840 - After reducing the fraction, the answer is -703/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/56-70/15 27/56-70/30 81/56-70/15 27/56-70/45 27/56-70/75