Add 12/8 and 42/24
1st number: 1 4/8, 2nd number: 1 18/24
12/8 + 42/24 is 13/4.
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,
12/8 = 12 × 3/8 × 3 = 36/24 - Likewise, for the 2nd fraction, since 24 × 1 = 24,
42/24 = 42 × 1/24 × 1 = 42/24 - Add the two like fractions:
36/24 + 42/24 = 36 + 42/24 = 78/24 - 78/24 simplified gives 13/4
- So, 12/8 + 42/24 = 13/4
In mixed form: 31/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/8+42/24 12/8+84/24 12/16+42/24 12/8+42/48 36/8+42/24 12/24+42/24 12/8+42/72 60/8+42/24 12/40+42/24 84/8+42/24 12/56+42/24