Subtract 30/24 from 27/28
1st number: 27/28, 2nd number: 1 6/24
27/28 - 30/24 is -2/7.
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,
27/28 = 27 × 6/28 × 6 = 162/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
30/24 = 30 × 7/24 × 7 = 210/168 - Subtract the two like fractions:
162/168 - 210/168 = 162 - 210/168 = -48/168 - After reducing the fraction, the answer is -2/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/28-30/24 27/28-60/24 27/56-30/24 27/28-30/48 81/28-30/24 27/28-90/24 27/84-30/24 27/28-30/72