Subtract 56/30 from 30/90
1st number: 30/90, 2nd number: 1 26/30
30/90 - 56/30 is -23/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 30 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
30/90 = 30 × 1/90 × 1 = 30/90 - Likewise, for the 2nd fraction, since 30 × 3 = 90,
56/30 = 56 × 3/30 × 3 = 168/90 - Subtract the two like fractions:
30/90 - 168/90 = 30 - 168/90 = -138/90 - After reducing the fraction, the answer is -23/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/90-56/30 30/90-56/60 30/90-56/90