Subtract 9/15 from 40/14
1st number: 2 12/14, 2nd number: 9/15
40/14 - 9/15 is 79/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 14 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 14 × 15 = 210,
40/14 = 40 × 15/14 × 15 = 600/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
9/15 = 9 × 14/15 × 14 = 126/210 - Subtract the two like fractions:
600/210 - 126/210 = 600 - 126/210 = 474/210 - After reducing the fraction, the answer is 79/35
- In mixed form: 29/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/14-9/15 40/14-18/15 40/28-9/15 40/14-9/30 40/14-27/15 40/42-9/15 40/14-9/45 40/14-45/15 40/70-9/15 40/14-9/75 40/14-63/15 40/98-9/15