Add 28/42 and 7/36
28/42 + 7/36 is 31/36.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 42 × 6 = 252,
28/42 = 28 × 6/42 × 6 = 168/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
7/36 = 7 × 7/36 × 7 = 49/252 - Add the two like fractions:
168/252 + 49/252 = 168 + 49/252 = 217/252 - 217/252 simplified gives 31/36
- So, 28/42 + 7/36 = 31/36
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/42+7/36 28/42+14/36 28/84+7/36 28/42+7/72 84/42+7/36 28/42+21/36 28/42+35/36 28/42+49/36