Subtract 2/7 from 3/36
3/36 - 2/7 is -17/84.
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,
3/36 = 3 × 7/36 × 7 = 21/252 - Likewise, for the 2nd fraction, since 7 × 36 = 252,
2/7 = 2 × 36/7 × 36 = 72/252 - Subtract the two like fractions:
21/252 - 72/252 = 21 - 72/252 = -51/252 - After reducing the fraction, the answer is -17/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/36-2/7 3/36-4/7 3/72-2/7 3/36-2/14 9/36-2/7 3/36-6/7 3/36-2/21 15/36-2/7 3/36-10/7 3/36-2/35 21/36-2/7 3/36-14/7 3/36-2/49