Add 36/42 and 18/12
1st number: 36/42, 2nd number: 1 6/12
36/42 + 18/12 is 33/14.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 42 × 2 = 84,
36/42 = 36 × 2/42 × 2 = 72/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
18/12 = 18 × 7/12 × 7 = 126/84 - Add the two like fractions:
72/84 + 126/84 = 72 + 126/84 = 198/84 - 198/84 simplified gives 33/14
- So, 36/42 + 18/12 = 33/14
In mixed form: 25/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/42+18/12 36/42+36/12 36/84+18/12 36/42+18/24 36/42+54/12 36/42+18/36 36/42+90/12 36/42+18/60 36/42+18/84