Subtract 20/63 from 30/28
1st number: 1 2/28, 2nd number: 20/63
30/28 - 20/63 is 95/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 63 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
30/28 = 30 × 9/28 × 9 = 270/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
20/63 = 20 × 4/63 × 4 = 80/252 - Subtract the two like fractions:
270/252 - 80/252 = 270 - 80/252 = 190/252 - After reducing the fraction, the answer is 95/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/28-20/63 30/28-40/63 30/56-20/63 90/28-20/63 30/28-60/63 30/84-20/63