Add 3/21 and 24/5
1st number: 3/21, 2nd number: 4 4/5
3/21 + 24/5 is 173/35.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 5 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 21 × 5 = 105,
3/21 = 3 × 5/21 × 5 = 15/105 - Likewise, for the 2nd fraction, since 5 × 21 = 105,
24/5 = 24 × 21/5 × 21 = 504/105 - Add the two like fractions:
15/105 + 504/105 = 15 + 504/105 = 519/105 - 519/105 simplified gives 173/35
- So, 3/21 + 24/5 = 173/35
In mixed form: 433/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/21+24/5 3/21+48/5 3/42+24/5 3/21+24/10 9/21+24/5 3/21+72/5 3/63+24/5 3/21+24/15 15/21+24/5 3/21+24/25 3/21+24/35