Subtract 20/63 from 28/60
28/60 - 20/63 is 47/315.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 60 × 21 = 1260,
28/60 = 28 × 21/60 × 21 = 588/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
20/63 = 20 × 20/63 × 20 = 400/1260 - Subtract the two like fractions:
588/1260 - 400/1260 = 588 - 400/1260 = 188/1260 - After reducing the fraction, the answer is 47/315
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/60-20/63 28/60-40/63 84/60-20/63 28/60-60/63