Add 15/35 and 21/24
15/35 + 21/24 is 73/56.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 35 and 24 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 35 × 24 = 840,
15/35 = 15 × 24/35 × 24 = 360/840 - Likewise, for the 2nd fraction, since 24 × 35 = 840,
21/24 = 21 × 35/24 × 35 = 735/840 - Add the two like fractions:
360/840 + 735/840 = 360 + 735/840 = 1095/840 - 1095/840 simplified gives 73/56
- So, 15/35 + 21/24 = 73/56
In mixed form: 117/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/35+21/24 15/35+42/24 15/70+21/24 15/35+21/48 45/35+21/24 15/35+63/24 15/35+21/72 75/35+21/24