Subtract 1/63 from 20/12
1st number: 1 8/12, 2nd number: 1/63
20/12 - 1/63 is 104/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 12 × 21 = 252,
20/12 = 20 × 21/12 × 21 = 420/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
1/63 = 1 × 4/63 × 4 = 4/252 - Subtract the two like fractions:
420/252 - 4/252 = 420 - 4/252 = 416/252 - After reducing the fraction, the answer is 104/63
- In mixed form: 141/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/12-1/63 20/12-2/63 20/24-1/63 60/12-1/63 20/12-3/63 20/36-1/63 20/12-5/63 20/60-1/63 20/12-7/63 20/84-1/63