Subtract 5/70 from 40/15
1st number: 2 10/15, 2nd number: 5/70
40/15 - 5/70 is 109/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 70 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 15 × 14 = 210,
40/15 = 40 × 14/15 × 14 = 560/210 - Likewise, for the 2nd fraction, since 70 × 3 = 210,
5/70 = 5 × 3/70 × 3 = 15/210 - Subtract the two like fractions:
560/210 - 15/210 = 560 - 15/210 = 545/210 - After reducing the fraction, the answer is 109/42
- In mixed form: 225/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/15-5/70 40/15-10/70 40/30-5/70 40/15-15/70 40/45-5/70 40/15-25/70 40/75-5/70 40/15-35/70