Add 72/12 and 42/24
1st number: 6 0/12, 2nd number: 1 18/24
72/12 + 42/24 is 31/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 24 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 12 × 2 = 24,
72/12 = 72 × 2/12 × 2 = 144/24 - Likewise, for the 2nd fraction, since 24 × 1 = 24,
42/24 = 42 × 1/24 × 1 = 42/24 - Add the two like fractions:
144/24 + 42/24 = 144 + 42/24 = 186/24 - 186/24 simplified gives 31/4
- So, 72/12 + 42/24 = 31/4
In mixed form: 73/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/12+84/24 72/24+42/24 72/12+42/48 72/36+42/24 72/12+42/72 72/60+42/24 72/84+42/24