Add 7/30 and 84/12
1st number: 7/30, 2nd number: 7 0/12
7/30 + 84/12 is 217/30.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 12 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 30 × 2 = 60,
7/30 = 7 × 2/30 × 2 = 14/60 - Likewise, for the 2nd fraction, since 12 × 5 = 60,
84/12 = 84 × 5/12 × 5 = 420/60 - Add the two like fractions:
14/60 + 420/60 = 14 + 420/60 = 434/60 - 434/60 simplified gives 217/30
- So, 7/30 + 84/12 = 217/30
In mixed form: 77/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/30+84/12 7/60+84/12 7/30+84/24 21/30+84/12 7/90+84/12 7/30+84/36 35/30+84/12 7/30+84/60 49/30+84/12