Subtract 5/12 from 84/63
1st number: 1 21/63, 2nd number: 5/12
84/63 - 5/12 is 11/12.
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,
84/63 = 84 × 4/63 × 4 = 336/252 - Likewise, for the 2nd fraction, since 12 × 21 = 252,
5/12 = 5 × 21/12 × 21 = 105/252 - Subtract the two like fractions:
336/252 - 105/252 = 336 - 105/252 = 231/252 - After reducing the fraction, the answer is 11/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/63-10/12 84/63-5/24 84/63-15/12 84/63-5/36 84/63-25/12 84/63-5/60 84/63-35/12 84/63-5/84