Add 9/35 and 24/21
1st number: 9/35, 2nd number: 1 3/21
9/35 + 24/21 is 7/5.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 21 is 105
Next, find the equivalent fraction of both fractional numbers with denominator 105 - For the 1st fraction, since 35 × 3 = 105,
9/35 = 9 × 3/35 × 3 = 27/105 - Likewise, for the 2nd fraction, since 21 × 5 = 105,
24/21 = 24 × 5/21 × 5 = 120/105 - Add the two like fractions:
27/105 + 120/105 = 27 + 120/105 = 147/105 - 147/105 simplified gives 7/5
- So, 9/35 + 24/21 = 7/5
In mixed form: 12/5
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/35+24/21 9/35+48/21 9/70+24/21 9/35+24/42 27/35+24/21 9/35+72/21 9/35+24/63 45/35+24/21 63/35+24/21