Subtract 7/80 from 10/15
10/15 - 7/80 is 139/240.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 15 × 16 = 240,
10/15 = 10 × 16/15 × 16 = 160/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
7/80 = 7 × 3/80 × 3 = 21/240 - Subtract the two like fractions:
160/240 - 21/240 = 160 - 21/240 = 139/240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/15-7/80 10/15-14/80 10/30-7/80 30/15-7/80 10/15-21/80 10/45-7/80 50/15-7/80 10/15-35/80 10/75-7/80 70/15-7/80 10/15-49/80