Add 30/42 and 3/36
30/42 + 3/36 is 67/84.
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,
30/42 = 30 × 6/42 × 6 = 180/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
3/36 = 3 × 7/36 × 7 = 21/252 - Add the two like fractions:
180/252 + 21/252 = 180 + 21/252 = 201/252 - 201/252 simplified gives 67/84
- So, 30/42 + 3/36 = 67/84
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/42+3/36 30/42+6/36 30/84+3/36 30/42+3/72 90/42+3/36 30/42+9/36 30/42+15/36 30/42+21/36