Subtract 70/25 from 20/36
1st number: 20/36, 2nd number: 2 20/25
20/36 - 70/25 is -101/45.
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,
20/36 = 20 × 25/36 × 25 = 500/900 - Likewise, for the 2nd fraction, since 25 × 36 = 900,
70/25 = 70 × 36/25 × 36 = 2520/900 - Subtract the two like fractions:
500/900 - 2520/900 = 500 - 2520/900 = -2020/900 - After reducing the fraction, the answer is -101/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/36-70/25 20/72-70/25 20/36-70/50 60/36-70/25 20/36-70/75