Subtract 70/25 from 45/36
1st number: 1 9/36, 2nd number: 2 20/25
45/36 - 70/25 is -31/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 25 is 900
Next, find the equivalent fraction of both fractional numbers with denominator 900 - For the 1st fraction, since 36 × 25 = 900,
45/36 = 45 × 25/36 × 25 = 1125/900 - Likewise, for the 2nd fraction, since 25 × 36 = 900,
70/25 = 70 × 36/25 × 36 = 2520/900 - Subtract the two like fractions:
1125/900 - 2520/900 = 1125 - 2520/900 = -1395/900 - After reducing the fraction, the answer is -31/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/36-70/25 45/72-70/25 45/36-70/50 45/36-70/75