Subtract 36/7 from 3/20
1st number: 3/20, 2nd number: 5 1/7
3/20 - 36/7 is -699/140.
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,
3/20 = 3 × 7/20 × 7 = 21/140 - Likewise, for the 2nd fraction, since 7 × 20 = 140,
36/7 = 36 × 20/7 × 20 = 720/140 - Subtract the two like fractions:
21/140 - 720/140 = 21 - 720/140 = -699/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/20-36/7 3/20-72/7 3/40-36/7 3/20-36/14 9/20-36/7 3/60-36/7 3/20-36/21 15/20-36/7 3/20-36/35 21/20-36/7 3/20-36/49