Subtract 36/21 from 6/36
1st number: 6/36, 2nd number: 1 15/21
6/36 - 36/21 is -65/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 21 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
6/36 = 6 × 7/36 × 7 = 42/252 - Likewise, for the 2nd fraction, since 21 × 12 = 252,
36/21 = 36 × 12/21 × 12 = 432/252 - Subtract the two like fractions:
42/252 - 432/252 = 42 - 432/252 = -390/252 - After reducing the fraction, the answer is -65/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/36-36/21 6/36-72/21 6/72-36/21 6/36-36/42 18/36-36/21 6/36-36/63 30/36-36/21 42/36-36/21