Subtract 15/36 from 70/20
1st number: 3 10/20, 2nd number: 15/36
70/20 - 15/36 is 37/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
70/20 = 70 × 9/20 × 9 = 630/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
15/36 = 15 × 5/36 × 5 = 75/180 - Subtract the two like fractions:
630/180 - 75/180 = 630 - 75/180 = 555/180 - After reducing the fraction, the answer is 37/12
- In mixed form: 31/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/20-30/36 70/40-15/36 70/20-15/72 70/20-45/36 70/60-15/36 70/20-75/36