Subtract 1/8 from 15/28
15/28 - 1/8 is 23/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 8 is 56
Next, find the equivalent fraction of both fractional numbers with denominator 56 - For the 1st fraction, since 28 × 2 = 56,
15/28 = 15 × 2/28 × 2 = 30/56 - Likewise, for the 2nd fraction, since 8 × 7 = 56,
1/8 = 1 × 7/8 × 7 = 7/56 - Subtract the two like fractions:
30/56 - 7/56 = 30 - 7/56 = 23/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/28-1/8 15/28-2/8 15/56-1/8 15/28-1/16 45/28-1/8 15/28-3/8 15/84-1/8 15/28-1/24 75/28-1/8 15/28-5/8 15/28-1/40 15/28-7/8 15/28-1/56