Subtract 9/28 from 18/24
18/24 - 9/28 is 3/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 28 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 24 × 7 = 168,
18/24 = 18 × 7/24 × 7 = 126/168 - Likewise, for the 2nd fraction, since 28 × 6 = 168,
9/28 = 9 × 6/28 × 6 = 54/168 - Subtract the two like fractions:
126/168 - 54/168 = 126 - 54/168 = 72/168 - After reducing the fraction, the answer is 3/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/24-9/28 18/24-18/28 18/48-9/28 18/24-9/56 54/24-9/28 18/24-27/28 18/72-9/28 18/24-9/84 90/24-9/28 18/24-45/28 18/24-63/28