Subtract 7/21 from 24/5
1st number: 4 4/5, 2nd number: 7/21
24/5 - 7/21 is 67/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 5 × 21 = 105,
24/5 = 24 × 21/5 × 21 = 504/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
7/21 = 7 × 5/21 × 5 = 35/105 - Subtract the two like fractions:
504/105 - 35/105 = 504 - 35/105 = 469/105 - After reducing the fraction, the answer is 67/15
- In mixed form: 47/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/5-7/21 24/5-14/21 24/10-7/21 24/5-7/42 72/5-7/21 24/15-7/21 24/5-7/63 24/5-35/21 24/25-7/21 24/5-49/21 24/35-7/21