Subtract 70/50 from 28/56
1st number: 28/56, 2nd number: 1 20/50
28/56 - 70/50 is -9/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 50 is 1400
Next, find the equivalent fraction of both fractional numbers with denominator 1400 - For the 1st fraction, since 56 × 25 = 1400,
28/56 = 28 × 25/56 × 25 = 700/1400 - Likewise, for the 2nd fraction, since 50 × 28 = 1400,
70/50 = 70 × 28/50 × 28 = 1960/1400 - Subtract the two like fractions:
700/1400 - 1960/1400 = 700 - 1960/1400 = -1260/1400 - After reducing the fraction, the answer is -9/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/56-70/50