Subtract 40/28 from 10/63
1st number: 10/63, 2nd number: 1 12/28
10/63 - 40/28 is -80/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 63 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 63 × 4 = 252,
10/63 = 10 × 4/63 × 4 = 40/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
40/28 = 40 × 9/28 × 9 = 360/252 - Subtract the two like fractions:
40/252 - 360/252 = 40 - 360/252 = -320/252 - After reducing the fraction, the answer is -80/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/63-40/28 10/63-80/28 10/63-40/56 30/63-40/28 10/63-40/84 50/63-40/28 70/63-40/28