Subtract 90/60 from 10/15
1st number: 10/15, 2nd number: 1 30/60
10/15 - 90/60 is -5/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 60 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
10/15 = 10 × 4/15 × 4 = 40/60 - Likewise, for the 2nd fraction, since 60 × 1 = 60,
90/60 = 90 × 1/60 × 1 = 90/60 - Subtract the two like fractions:
40/60 - 90/60 = 40 - 90/60 = -50/60 - After reducing the fraction, the answer is -5/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/15-90/60 10/30-90/60 30/15-90/60 10/45-90/60 50/15-90/60 10/75-90/60 70/15-90/60