Subtract 21/36 from 2/24
2/24 - 21/36 is -1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 36 is 72
Next, find the equivalent fraction of both fractional numbers with denominator 72 - For the 1st fraction, since 24 × 3 = 72,
2/24 = 2 × 3/24 × 3 = 6/72 - Likewise, for the 2nd fraction, since 36 × 2 = 72,
21/36 = 21 × 2/36 × 2 = 42/72 - Subtract the two like fractions:
6/72 - 42/72 = 6 - 42/72 = -36/72 - After reducing the fraction, the answer is -1/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/24-21/36 2/24-42/36 2/48-21/36 2/24-21/72 6/24-21/36 2/24-63/36 2/72-21/36 10/24-21/36 14/24-21/36