Answers

Add 18/84 and 42/30

1^st number: 18/84, 2^nd number: 1 12/30

18/84 + 42/30 is 113/70.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 30 is 420
   
   Next, find the equivalent fraction of both fractional numbers with denominator 420
2. For the 1st fraction, since 84 × 5 = 420,
   18/84 = 18 × 5/84 × 5 = 90/420
3. Likewise, for the 2nd fraction, since 30 × 14 = 420,
   42/30 = 42 × 14/30 × 14 = 588/420
4. Add the two like fractions:
   90/420 + 588/420 = 90 + 588/420 = 678/420
5. 678/420 simplified gives 113/70
6. So, 18/84 + 42/30 = 113/70
   In mixed form: 143/70

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