Subtract 80/12 from 27/63
1st number: 27/63, 2nd number: 6 8/12
27/63 - 80/12 is -131/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 12 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
27/63 = 27 × 4/63 × 4 = 108/252 - Likewise, for the 2nd fraction, since 12 × 21 = 252,
80/12 = 80 × 21/12 × 21 = 1680/252 - Subtract the two like fractions:
108/252 - 1680/252 = 108 - 1680/252 = -1572/252 - After reducing the fraction, the answer is -131/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/63-80/12 27/63-80/24 81/63-80/12 27/63-80/36 27/63-80/60 27/63-80/84