Subtract 1/24 from 45/21
1st number: 2 3/21, 2nd number: 1/24
45/21 - 1/24 is 353/168.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 24 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 21 × 8 = 168,
45/21 = 45 × 8/21 × 8 = 360/168 - Likewise, for the 2nd fraction, since 24 × 7 = 168,
1/24 = 1 × 7/24 × 7 = 7/168 - Subtract the two like fractions:
360/168 - 7/168 = 360 - 7/168 = 353/168 - In mixed form: 217/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/21-1/24 45/21-2/24 45/42-1/24 45/21-1/48 45/21-3/24 45/63-1/24 45/21-1/72 45/21-5/24 45/21-7/24