Subtract 90/10 from 40/56
1st number: 40/56, 2nd number: 9 0/10
40/56 - 90/10 is -58/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 56 and 10 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 56 × 5 = 280,
40/56 = 40 × 5/56 × 5 = 200/280 - Likewise, for the 2nd fraction, since 10 × 28 = 280,
90/10 = 90 × 28/10 × 28 = 2520/280 - Subtract the two like fractions:
200/280 - 2520/280 = 200 - 2520/280 = -2320/280 - After reducing the fraction, the answer is -58/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/56-90/10 40/56-90/20 40/56-90/30 40/56-90/50 40/56-90/70