Subtract 15/40 from 70/25
1st number: 2 20/25, 2nd number: 15/40
70/25 - 15/40 is 97/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 40 is 200
Next, find the equivalent fraction of both fractional numbers with denominator 200 - For the 1st fraction, since 25 × 8 = 200,
70/25 = 70 × 8/25 × 8 = 560/200 - Likewise, for the 2nd fraction, since 40 × 5 = 200,
15/40 = 15 × 5/40 × 5 = 75/200 - Subtract the two like fractions:
560/200 - 75/200 = 560 - 75/200 = 485/200 - After reducing the fraction, the answer is 97/40
- In mixed form: 217/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/25-30/40 70/50-15/40 70/25-15/80 70/25-45/40 70/75-15/40 70/25-75/40