Add 54/42 and 90/36
1st number: 1 12/42, 2nd number: 2 18/36
54/42 + 90/36 is 53/14.
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,
54/42 = 54 × 6/42 × 6 = 324/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
90/36 = 90 × 7/36 × 7 = 630/252 - Add the two like fractions:
324/252 + 630/252 = 324 + 630/252 = 954/252 - 954/252 simplified gives 53/14
- So, 54/42 + 90/36 = 53/14
In mixed form: 311/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/84+90/36 54/42+90/72