Subtract 70/36 from 40/25
1st number: 1 15/25, 2nd number: 1 34/36
40/25 - 70/36 is -31/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 36 is 900
Next, find the equivalent fraction of both fractional numbers with denominator 900 - For the 1st fraction, since 25 × 36 = 900,
40/25 = 40 × 36/25 × 36 = 1440/900 - Likewise, for the 2nd fraction, since 36 × 25 = 900,
70/36 = 70 × 25/36 × 25 = 1750/900 - Subtract the two like fractions:
1440/900 - 1750/900 = 1440 - 1750/900 = -310/900 - After reducing the fraction, the answer is -31/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/25-70/36 40/50-70/36 40/25-70/72 40/75-70/36