Subtract 20/63 from 84/36
1st number: 2 12/36, 2nd number: 20/63
84/36 - 20/63 is 127/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
84/36 = 84 × 7/36 × 7 = 588/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
20/63 = 20 × 4/63 × 4 = 80/252 - Subtract the two like fractions:
588/252 - 80/252 = 588 - 80/252 = 508/252 - After reducing the fraction, the answer is 127/63
- In mixed form: 21/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/36-40/63 84/72-20/63 84/36-60/63