Subtract 10/12 from 84/63
1st number: 1 21/63, 2nd number: 10/12
84/63 - 10/12 is 1/2.
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,
10/12 = 10 × 21/12 × 21 = 210/252 - Subtract the two like fractions:
336/252 - 210/252 = 336 - 210/252 = 126/252 - After reducing the fraction, the answer is 1/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/63-20/12 84/63-10/24 84/63-30/12 84/63-10/36 84/63-50/12 84/63-10/60 84/63-70/12 84/63-10/84