Subtract 24/28 from 5/18
5/18 - 24/28 is -73/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 28 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 18 × 14 = 252,
5/18 = 5 × 14/18 × 14 = 70/252 - Likewise, for the 2nd fraction, since 28 × 9 = 252,
24/28 = 24 × 9/28 × 9 = 216/252 - Subtract the two like fractions:
70/252 - 216/252 = 70 - 216/252 = -146/252 - After reducing the fraction, the answer is -73/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/18-24/28 5/18-48/28 5/36-24/28 5/18-24/56 15/18-24/28 5/18-72/28 5/54-24/28 5/18-24/84 25/18-24/28 5/90-24/28 35/18-24/28