Answers

Add 42/63 and 84/54

1^st number: 42/63, 2^nd number: 1 30/54

42/63 + 84/54 is 20/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 54 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 63 × 6 = 378,
   42/63 = 42 × 6/63 × 6 = 252/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   84/54 = 84 × 7/54 × 7 = 588/378
4. Add the two like fractions:
   252/378 + 588/378 = 252 + 588/378 = 840/378
5. 840/378 simplified gives 20/9
6. So, 42/63 + 84/54 = 20/9
   In mixed form: 22/9

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