Add 21/24 and 63/35
1st number: 21/24, 2nd number: 1 28/35
21/24 + 63/35 is 107/40.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 35 is 840
Next, find the equivalent fraction of both fractional numbers with denominator 840 - For the 1st fraction, since 24 × 35 = 840,
21/24 = 21 × 35/24 × 35 = 735/840 - Likewise, for the 2nd fraction, since 35 × 24 = 840,
63/35 = 63 × 24/35 × 24 = 1512/840 - Add the two like fractions:
735/840 + 1512/840 = 735 + 1512/840 = 2247/840 - 2247/840 simplified gives 107/40
- So, 21/24 + 63/35 = 107/40
In mixed form: 227/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/24+63/35 21/48+63/35 21/24+63/70 63/24+63/35 21/72+63/35