Subtract 2/8 from 40/15
1st number: 2 10/15, 2nd number: 2/8
40/15 - 2/8 is 29/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 8 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
40/15 = 40 × 8/15 × 8 = 320/120 - Likewise, for the 2nd fraction, since 8 × 15 = 120,
2/8 = 2 × 15/8 × 15 = 30/120 - Subtract the two like fractions:
320/120 - 30/120 = 320 - 30/120 = 290/120 - After reducing the fraction, the answer is 29/12
- In mixed form: 25/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/15-2/8 40/15-4/8 40/30-2/8 40/15-2/16 40/15-6/8 40/45-2/8 40/15-2/24 40/15-10/8 40/75-2/8 40/15-2/40 40/15-14/8 40/15-2/56