Subtract 60/56 from 30/40
1st number: 30/40, 2nd number: 1 4/56
30/40 - 60/56 is -9/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 56 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 40 × 7 = 280,
30/40 = 30 × 7/40 × 7 = 210/280 - Likewise, for the 2nd fraction, since 56 × 5 = 280,
60/56 = 60 × 5/56 × 5 = 300/280 - Subtract the two like fractions:
210/280 - 300/280 = 210 - 300/280 = -90/280 - After reducing the fraction, the answer is -9/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/40-60/56 30/80-60/56 90/40-60/56