Subtract 32/36 from 27/21
1st number: 1 6/21, 2nd number: 32/36
27/21 - 32/36 is 25/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 21 × 12 = 252,
27/21 = 27 × 12/21 × 12 = 324/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
32/36 = 32 × 7/36 × 7 = 224/252 - Subtract the two like fractions:
324/252 - 224/252 = 324 - 224/252 = 100/252 - After reducing the fraction, the answer is 25/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/21-32/36 27/21-64/36 27/42-32/36 27/21-32/72 81/21-32/36 27/21-96/36 27/63-32/36