Subtract 80/63 from 8/28
1st number: 8/28, 2nd number: 1 17/63
8/28 - 80/63 is -62/63.
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,
8/28 = 8 × 9/28 × 9 = 72/252 - Likewise, for the 2nd fraction, since 63 × 4 = 252,
80/63 = 80 × 4/63 × 4 = 320/252 - Subtract the two like fractions:
72/252 - 320/252 = 72 - 320/252 = -248/252 - After reducing the fraction, the answer is -62/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/28-80/63 8/56-80/63 24/28-80/63 8/84-80/63 40/28-80/63 56/28-80/63