Subtract 7/24 from 40/28
1st number: 1 12/28, 2nd number: 7/24
40/28 - 7/24 is 191/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 28 × 6 = 168,
40/28 = 40 × 6/28 × 6 = 240/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
7/24 = 7 × 7/24 × 7 = 49/168 - Subtract the two like fractions:
240/168 - 49/168 = 240 - 49/168 = 191/168 - In mixed form: 123/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/28-7/24 40/28-14/24 40/56-7/24 40/28-7/48 40/28-21/24 40/84-7/24 40/28-7/72 40/28-35/24 40/28-49/24