Subtract 10/80 from 1/15
1/15 - 10/80 is -7/120.
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,
1/15 = 1 × 16/15 × 16 = 16/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
10/80 = 10 × 3/80 × 3 = 30/240 - Subtract the two like fractions:
16/240 - 30/240 = 16 - 30/240 = -14/240 - After reducing the fraction, the answer is -7/120
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/15-10/80 1/15-20/80 1/30-10/80 3/15-10/80 1/15-30/80 1/45-10/80 5/15-10/80 1/15-50/80 1/75-10/80 7/15-10/80 1/15-70/80