Subtract 20/24 from 21/3
1st number: 7 0/3, 2nd number: 20/24
21/3 - 20/24 is 37/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 24 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 3 × 8 = 24,
21/3 = 21 × 8/3 × 8 = 168/24 - Likewise, for the 2nd fraction, since 24 × 1 = 24,
20/24 = 20 × 1/24 × 1 = 20/24 - Subtract the two like fractions:
168/24 - 20/24 = 168 - 20/24 = 148/24 - After reducing the fraction, the answer is 37/6
- In mixed form: 61/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/3-20/24 21/3-40/24 21/6-20/24 21/3-20/48 63/3-20/24 21/3-60/24 21/9-20/24 21/3-20/72 21/15-20/24