Subtract 42/36 from 36/63
1st number: 36/63, 2nd number: 1 6/36
36/63 - 42/36 is -25/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
36/63 = 36 × 4/63 × 4 = 144/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
42/36 = 42 × 7/36 × 7 = 294/252 - Subtract the two like fractions:
144/252 - 294/252 = 144 - 294/252 = -150/252 - After reducing the fraction, the answer is -25/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/63-42/36 36/63-84/36 36/63-42/72