Subtract 75/18 from 56/30
1st number: 1 26/30, 2nd number: 4 3/18
56/30 - 75/18 is -23/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 18 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 30 × 3 = 90,
56/30 = 56 × 3/30 × 3 = 168/90 - Likewise, for the 2nd fraction, since 18 × 5 = 90,
75/18 = 75 × 5/18 × 5 = 375/90 - Subtract the two like fractions:
168/90 - 375/90 = 168 - 375/90 = -207/90 - After reducing the fraction, the answer is -23/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/60-75/18 56/30-75/36 56/90-75/18 56/30-75/54 56/30-75/90