Subtract 35/80 from 1/15
1/15 - 35/80 is -89/240.
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,
1/15 = 1 × 16/15 × 16 = 16/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
35/80 = 35 × 3/80 × 3 = 105/240 - Subtract the two like fractions:
16/240 - 105/240 = 16 - 105/240 = -89/240
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/15-35/80 1/15-70/80 1/30-35/80 3/15-35/80 1/45-35/80 5/15-35/80 1/75-35/80 7/15-35/80