Answers

Add 84/42 and 60/54

1^st number: 2 0/42, 2^nd number: 1 6/54

84/42 + 60/54 is 28/9.

Steps for adding fractions

1. 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
2. For the 1st fraction, since 42 × 9 = 378,
   84/42 = 84 × 9/42 × 9 = 756/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   60/54 = 60 × 7/54 × 7 = 420/378
4. Add the two like fractions:
   756/378 + 420/378 = 756 + 420/378 = 1176/378
5. 1176/378 simplified gives 28/9
6. So, 84/42 + 60/54 = 28/9
   In mixed form: 31/9

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related:

Add Fractions Calculator