Add 30/18 and 42/32
1st number: 1 12/18, 2nd number: 1 10/32
30/18 + 42/32 is 143/48.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 18 and 32 is 288
Next, find the equivalent fraction of both fractional numbers with denominator 288 - For the 1st fraction, since 18 × 16 = 288,
30/18 = 30 × 16/18 × 16 = 480/288 - Likewise, for the 2nd fraction, since 32 × 9 = 288,
42/32 = 42 × 9/32 × 9 = 378/288 - Add the two like fractions:
480/288 + 378/288 = 480 + 378/288 = 858/288 - 858/288 simplified gives 143/48
- So, 30/18 + 42/32 = 143/48
In mixed form: 247/48
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/18+42/32 30/18+84/32 30/36+42/32 30/18+42/64 90/18+42/32 30/54+42/32 30/18+42/96 30/90+42/32