Subtract 90/10 from 18/56
1st number: 18/56, 2nd number: 9 0/10
18/56 - 90/10 is -243/28.
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,
18/56 = 18 × 5/56 × 5 = 90/280 - Likewise, for the 2nd fraction, since 10 × 28 = 280,
90/10 = 90 × 28/10 × 28 = 2520/280 - Subtract the two like fractions:
90/280 - 2520/280 = 90 - 2520/280 = -2430/280 - After reducing the fraction, the answer is -243/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/56-90/10 18/56-90/20 54/56-90/10 18/56-90/30 90/56-90/10 18/56-90/50 18/56-90/70