Subtract 15/18 from 24/28
24/28 - 15/18 is 1/42.
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,
24/28 = 24 × 9/28 × 9 = 216/252 - Likewise, for the 2nd fraction, since 18 × 14 = 252,
15/18 = 15 × 14/18 × 14 = 210/252 - Subtract the two like fractions:
216/252 - 210/252 = 216 - 210/252 = 6/252 - After reducing the fraction, the answer is 1/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/28-15/18 24/28-30/18 24/56-15/18 24/28-15/36 72/28-15/18 24/28-45/18 24/84-15/18 24/28-15/54 24/28-75/18 24/28-15/90