Add 7/42 and 54/36
1st number: 7/42, 2nd number: 1 18/36
7/42 + 54/36 is 5/3.
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,
7/42 = 7 × 6/42 × 6 = 42/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
54/36 = 54 × 7/36 × 7 = 378/252 - Add the two like fractions:
42/252 + 378/252 = 42 + 378/252 = 420/252 - 420/252 simplified gives 5/3
- So, 7/42 + 54/36 = 5/3
In mixed form: 12/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/42+54/36 7/84+54/36 7/42+54/72 21/42+54/36 35/42+54/36 49/42+54/36