Subtract 14/7 from 20/36
1st number: 20/36, 2nd number: 2 0/7
20/36 - 14/7 is -13/9.
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,
20/36 = 20 × 7/36 × 7 = 140/252 - Likewise, for the 2nd fraction, since 7 × 36 = 252,
14/7 = 14 × 36/7 × 36 = 504/252 - Subtract the two like fractions:
140/252 - 504/252 = 140 - 504/252 = -364/252 - After reducing the fraction, the answer is -13/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/36-14/7 20/36-28/7 20/72-14/7 60/36-14/7 20/36-42/7 20/36-14/21 20/36-70/7 20/36-14/35 20/36-98/7 20/36-14/49