Add 21/35 and 21/24
21/35 + 21/24 is 59/40.
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,
21/35 = 21 × 24/35 × 24 = 504/840 - Likewise, for the 2nd fraction, since 24 × 35 = 840,
21/24 = 21 × 35/24 × 35 = 735/840 - Add the two like fractions:
504/840 + 735/840 = 504 + 735/840 = 1239/840 - 1239/840 simplified gives 59/40
- So, 21/35 + 21/24 = 59/40
In mixed form: 119/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/35+21/24 21/35+42/24 21/70+21/24 21/35+21/48 63/35+21/24 21/35+63/24 21/35+21/72