Subtract 80/40 from 35/15
1st number: 2 5/15, 2nd number: 2 0/40
35/15 - 80/40 is 1/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
35/15 = 35 × 8/15 × 8 = 280/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
80/40 = 80 × 3/40 × 3 = 240/120 - Subtract the two like fractions:
280/120 - 240/120 = 280 - 240/120 = 40/120 - After reducing the fraction, the answer is 1/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/15-80/40 35/30-80/40 35/45-80/40 35/75-80/40