Add 42/8 and 21/24
1st number: 5 2/8, 2nd number: 21/24
42/8 + 21/24 is 49/8.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 8 and 24 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 8 × 3 = 24,
42/8 = 42 × 3/8 × 3 = 126/24 - Likewise, for the 2nd fraction, since 24 × 1 = 24,
21/24 = 21 × 1/24 × 1 = 21/24 - Add the two like fractions:
126/24 + 21/24 = 126 + 21/24 = 147/24 - 147/24 simplified gives 49/8
- So, 42/8 + 21/24 = 49/8
In mixed form: 61/8
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/8+21/24 42/8+42/24 42/16+21/24 42/8+21/48 42/8+63/24 42/24+21/24 42/8+21/72 42/40+21/24 42/56+21/24