Subtract 90/15 from 7/10
1st number: 7/10, 2nd number: 6 0/15
7/10 - 90/15 is -53/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 15 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 10 × 3 = 30,
7/10 = 7 × 3/10 × 3 = 21/30 - Likewise, for the 2nd fraction, since 15 × 2 = 30,
90/15 = 90 × 2/15 × 2 = 180/30 - Subtract the two like fractions:
21/30 - 180/30 = 21 - 180/30 = -159/30 - After reducing the fraction, the answer is -53/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/10-90/15 7/20-90/15 7/10-90/30 21/10-90/15 7/30-90/15 7/10-90/45 35/10-90/15 7/50-90/15 7/10-90/75 49/10-90/15 7/70-90/15