Add 7/12 and 30/18
1st number: 7/12, 2nd number: 1 12/18
7/12 + 30/18 is 9/4.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 18 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
7/12 = 7 × 3/12 × 3 = 21/36 - Likewise, for the 2nd fraction, since 18 × 2 = 36,
30/18 = 30 × 2/18 × 2 = 60/36 - Add the two like fractions:
21/36 + 60/36 = 21 + 60/36 = 81/36 - 81/36 simplified gives 9/4
- So, 7/12 + 30/18 = 9/4
In mixed form: 21/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/12+30/18 7/12+60/18 7/24+30/18 7/12+30/36 21/12+30/18 7/12+90/18 7/36+30/18 7/12+30/54 35/12+30/18 7/60+30/18 7/12+30/90 49/12+30/18 7/84+30/18