Subtract 45/28 from 50/63
1st number: 50/63, 2nd number: 1 17/28
50/63 - 45/28 is -205/252.
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,
50/63 = 50 × 4/63 × 4 = 200/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
45/28 = 45 × 9/28 × 9 = 405/252 - Subtract the two like fractions:
200/252 - 405/252 = 200 - 405/252 = -205/252
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/63-90/28 50/63-45/56 50/63-45/84