Subtract 90/56 from 30/25
1st number: 1 5/25, 2nd number: 1 34/56
30/25 - 90/56 is -57/140.
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,
30/25 = 30 × 56/25 × 56 = 1680/1400 - Likewise, for the 2nd fraction, since 56 × 25 = 1400,
90/56 = 90 × 25/56 × 25 = 2250/1400 - Subtract the two like fractions:
1680/1400 - 2250/1400 = 1680 - 2250/1400 = -570/1400 - After reducing the fraction, the answer is -57/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/25-90/56 30/50-90/56 90/25-90/56 30/75-90/56