Add 24/15 and 42/12
1st number: 1 9/15, 2nd number: 3 6/12
24/15 + 42/12 is 51/10.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 15 × 4 = 60,
24/15 = 24 × 4/15 × 4 = 96/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
42/12 = 42 × 5/12 × 5 = 210/60 - Add the two like fractions:
96/60 + 210/60 = 96 + 210/60 = 306/60 - 306/60 simplified gives 51/10
- So, 24/15 + 42/12 = 51/10
In mixed form: 51/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 48/15+42/12 24/15+84/12 24/30+42/12 24/15+42/24 72/15+42/12 24/45+42/12 24/15+42/36 24/75+42/12 24/15+42/60 24/15+42/84