Subtract 27/28 from 30/4
1st number: 7 2/4, 2nd number: 27/28
30/4 - 27/28 is 183/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 28 is 28
Next, find the equivalent fraction of both fractional numbers with denominator 28 - For the 1st fraction, since 4 × 7 = 28,
30/4 = 30 × 7/4 × 7 = 210/28 - Likewise, for the 2nd fraction, since 28 × 1 = 28,
27/28 = 27 × 1/28 × 1 = 27/28 - Subtract the two like fractions:
210/28 - 27/28 = 210 - 27/28 = 183/28 - In mixed form: 615/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/4-27/28 30/4-54/28 30/8-27/28 30/4-27/56 90/4-27/28 30/4-81/28 30/12-27/28 30/4-27/84 30/20-27/28 30/28-27/28