Subtract 35/80 from 3/15
3/15 - 35/80 is -19/80.
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,
3/15 = 3 × 16/15 × 16 = 48/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
35/80 = 35 × 3/80 × 3 = 105/240 - Subtract the two like fractions:
48/240 - 105/240 = 48 - 105/240 = -57/240 - After reducing the fraction, the answer is -19/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/15-35/80 3/15-70/80 3/30-35/80 9/15-35/80 3/45-35/80 3/75-35/80 21/15-35/80