Add 72/24 and 42/12
1st number: 3 0/24, 2nd number: 3 6/12
72/24 + 42/12 is 13/2.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 24 and 12 is 24
Next, find the equivalent fraction of both fractional numbers with denominator 24 - For the 1st fraction, since 24 × 1 = 24,
72/24 = 72 × 1/24 × 1 = 72/24 - Likewise, for the 2nd fraction, since 12 × 2 = 24,
42/12 = 42 × 2/12 × 2 = 84/24 - Add the two like fractions:
72/24 + 84/24 = 72 + 84/24 = 156/24 - 156/24 simplified gives 13/2
- So, 72/24 + 42/12 = 13/2
In mixed form: 61/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/24+84/12 72/48+42/12 72/24+42/24 72/24+42/36 72/24+42/60 72/24+42/84