Subtract 21/8 from 25/24
1st number: 1 1/24, 2nd number: 2 5/8
25/24 - 21/8 is -19/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 8 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 24 × 1 = 24,
25/24 = 25 × 1/24 × 1 = 25/24 - Likewise, for the 2nd fraction, since 8 × 3 = 24,
21/8 = 21 × 3/8 × 3 = 63/24 - Subtract the two like fractions:
25/24 - 63/24 = 25 - 63/24 = -38/24 - After reducing the fraction, the answer is -19/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/24-21/8 25/24-42/8 25/48-21/8 25/24-21/16 75/24-21/8 25/24-63/8 25/72-21/8 25/24-21/24 25/24-21/40 25/24-21/56