Subtract 90/28 from 1/63
1st number: 1/63, 2nd number: 3 6/28
1/63 - 90/28 is -403/126.
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,
1/63 = 1 × 4/63 × 4 = 4/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
90/28 = 90 × 9/28 × 9 = 810/252 - Subtract the two like fractions:
4/252 - 810/252 = 4 - 810/252 = -806/252 - After reducing the fraction, the answer is -403/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/63-90/28 1/63-90/56 3/63-90/28 1/63-90/84 5/63-90/28 7/63-90/28