Subtract 3/7 from 4/36
4/36 - 3/7 is -20/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 7 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
4/36 = 4 × 7/36 × 7 = 28/252 - Likewise, for the 2nd fraction, since 7 × 36 = 252,
3/7 = 3 × 36/7 × 36 = 108/252 - Subtract the two like fractions:
28/252 - 108/252 = 28 - 108/252 = -80/252 - After reducing the fraction, the answer is -20/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/36-3/7 4/36-6/7 4/72-3/7 4/36-3/14 12/36-3/7 4/36-9/7 4/36-3/21 20/36-3/7 4/36-15/7 4/36-3/35 28/36-3/7 4/36-21/7 4/36-3/49