Subtract 63/18 from 80/28
1st number: 2 24/28, 2nd number: 3 9/18
80/28 - 63/18 is -9/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 18 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 28 × 9 = 252,
80/28 = 80 × 9/28 × 9 = 720/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
63/18 = 63 × 14/18 × 14 = 882/252 - Subtract the two like fractions:
720/252 - 882/252 = 720 - 882/252 = -162/252 - After reducing the fraction, the answer is -9/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/56-63/18 80/28-63/36 80/84-63/18 80/28-63/54 80/28-63/90