Subtract 9/4 from 27/28
1st number: 27/28, 2nd number: 2 1/4
27/28 - 9/4 is -9/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 4 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 28 × 1 = 28,
27/28 = 27 × 1/28 × 1 = 27/28 - Likewise, for the 2nd fraction, since 4 × 7 = 28,
9/4 = 9 × 7/4 × 7 = 63/28 - Subtract the two like fractions:
27/28 - 63/28 = 27 - 63/28 = -36/28 - After reducing the fraction, the answer is -9/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/28-9/4 27/28-18/4 27/56-9/4 27/28-9/8 81/28-9/4 27/28-27/4 27/84-9/4 27/28-9/12 27/28-45/4 27/28-9/20 27/28-63/4 27/28-9/28