Subtract 81/24 from 28/8
1st number: 3 4/8, 2nd number: 3 9/24
28/8 - 81/24 is 1/8.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 24 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 8 × 3 = 24,
28/8 = 28 × 3/8 × 3 = 84/24 - Likewise, for the 2nd fraction, since 24 × 1 = 24,
81/24 = 81 × 1/24 × 1 = 81/24 - Subtract the two like fractions:
84/24 - 81/24 = 84 - 81/24 = 3/24 - After reducing the fraction, the answer is 1/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/8-81/24 28/16-81/24 28/8-81/48 84/8-81/24 28/24-81/24 28/8-81/72 28/40-81/24 28/56-81/24