Add 30/15 and 42/24
1st number: 2 0/15, 2nd number: 1 18/24
30/15 + 42/24 is 15/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 15 and 24 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 15 × 8 = 120,
30/15 = 30 × 8/15 × 8 = 240/120 - Likewise, for the 2nd fraction, since 24 × 5 = 120,
42/24 = 42 × 5/24 × 5 = 210/120 - Add the two like fractions:
240/120 + 210/120 = 240 + 210/120 = 450/120 - 450/120 simplified gives 15/4
- So, 30/15 + 42/24 = 15/4
In mixed form: 33/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/15+42/24 30/15+84/24 30/15+42/48 90/15+42/24 30/45+42/24 30/15+42/72 30/75+42/24