Add 30/36 and 15/7
1st number: 30/36, 2nd number: 2 1/7
30/36 + 15/7 is 125/42.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 36 and 7 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 36 × 7 = 252,
30/36 = 30 × 7/36 × 7 = 210/252 - Likewise, for the 2nd fraction, since 7 × 36 = 252,
15/7 = 15 × 36/7 × 36 = 540/252 - Add the two like fractions:
210/252 + 540/252 = 210 + 540/252 = 750/252 - 750/252 simplified gives 125/42
- So, 30/36 + 15/7 = 125/42
In mixed form: 241/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/36+15/7 30/36+30/7 30/72+15/7 30/36+15/14 90/36+15/7 30/36+45/7 30/36+15/21 30/36+75/7 30/36+15/35 30/36+15/49