Add 24/21 and 7/5
1st number: 1 3/21, 2nd number: 1 2/5
24/21 + 7/5 is 89/35.
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,
24/21 = 24 × 5/21 × 5 = 120/105 - Likewise, for the 2nd fraction, since 5 × 21 = 105,
7/5 = 7 × 21/5 × 21 = 147/105 - Add the two like fractions:
120/105 + 147/105 = 120 + 147/105 = 267/105 - 267/105 simplified gives 89/35
- So, 24/21 + 7/5 = 89/35
In mixed form: 219/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/21+7/5 24/21+14/5 24/42+7/5 24/21+7/10 72/21+7/5 24/21+21/5 24/63+7/5 24/21+7/15 24/21+35/5 24/21+7/25 24/21+49/5 24/21+7/35