Add 84/42 and 49/54
1st number: 2 0/42, 2nd number: 49/54
84/42 + 49/54 is 157/54.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 54 is 378
Next, find the equivalent fraction of both fractional numbers with denominator 378 - For the 1st fraction, since 42 × 9 = 378,
84/42 = 84 × 9/42 × 9 = 756/378 - Likewise, for the 2nd fraction, since 54 × 7 = 378,
49/54 = 49 × 7/54 × 7 = 343/378 - Add the two like fractions:
756/378 + 343/378 = 756 + 343/378 = 1099/378 - 1099/378 simplified gives 157/54
- So, 84/42 + 49/54 = 157/54
In mixed form: 249/54
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/42+98/54