Add 30/12 and 36/42
1st number: 2 6/12, 2nd number: 36/42
30/12 + 36/42 is 47/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 42 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
30/12 = 30 × 7/12 × 7 = 210/84 - Likewise, for the 2nd fraction, since 42 × 2 = 84,
36/42 = 36 × 2/42 × 2 = 72/84 - Add the two like fractions:
210/84 + 72/84 = 210 + 72/84 = 282/84 - 282/84 simplified gives 47/14
- So, 30/12 + 36/42 = 47/14
In mixed form: 35/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/12+36/42 30/12+72/42 30/24+36/42 30/12+36/84 90/12+36/42 30/36+36/42 30/60+36/42 30/84+36/42