Subtract 30/28 from 25/8
1st number: 3 1/8, 2nd number: 1 2/28
25/8 - 30/28 is 115/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 28 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 8 × 7 = 56,
25/8 = 25 × 7/8 × 7 = 175/56 - Likewise, for the 2nd fraction, since 28 × 2 = 56,
30/28 = 30 × 2/28 × 2 = 60/56 - Subtract the two like fractions:
175/56 - 60/56 = 175 - 60/56 = 115/56 - In mixed form: 23/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/8-30/28 25/8-60/28 25/16-30/28 25/8-30/56 75/8-30/28 25/8-90/28 25/24-30/28 25/8-30/84 25/40-30/28 25/56-30/28