Subtract 70/56 from 21/25
1st number: 21/25, 2nd number: 1 14/56
21/25 - 70/56 is -41/100.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 56 is 1400
Next, find the equivalent fraction of both fractional numbers with denominator 1400 - For the 1st fraction, since 25 × 56 = 1400,
21/25 = 21 × 56/25 × 56 = 1176/1400 - Likewise, for the 2nd fraction, since 56 × 25 = 1400,
70/56 = 70 × 25/56 × 25 = 1750/1400 - Subtract the two like fractions:
1176/1400 - 1750/1400 = 1176 - 1750/1400 = -574/1400 - After reducing the fraction, the answer is -41/100
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/25-70/56 21/50-70/56 63/25-70/56 21/75-70/56