Add 30/18 and 42/48
1st number: 1 12/18, 2nd number: 42/48
30/18 + 42/48 is 61/24.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 48 is 144
Next, find the equivalent fraction of both fractional numbers with denominator 144 - For the 1st fraction, since 18 × 8 = 144,
30/18 = 30 × 8/18 × 8 = 240/144 - Likewise, for the 2nd fraction, since 48 × 3 = 144,
42/48 = 42 × 3/48 × 3 = 126/144 - Add the two like fractions:
240/144 + 126/144 = 240 + 126/144 = 366/144 - 366/144 simplified gives 61/24
- So, 30/18 + 42/48 = 61/24
In mixed form: 213/24
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/18+42/48 30/18+84/48 30/36+42/48 30/18+42/96 90/18+42/48 30/54+42/48 30/90+42/48