Subtract 12/7 from 35/20
1st number: 1 15/20, 2nd number: 1 5/7
35/20 - 12/7 is 1/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 7 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 20 × 7 = 140,
35/20 = 35 × 7/20 × 7 = 245/140 - Likewise, for the 2nd fraction, since 7 × 20 = 140,
12/7 = 12 × 20/7 × 20 = 240/140 - Subtract the two like fractions:
245/140 - 240/140 = 245 - 240/140 = 5/140 - After reducing the fraction, the answer is 1/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/20-12/7 35/20-24/7 35/40-12/7 35/20-12/14 35/20-36/7 35/60-12/7 35/20-12/21 35/20-60/7 35/20-12/35 35/20-84/7 35/20-12/49