Answers

Add 42/84 and 5/30

42/84 + 5/30 is 2/3.

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,
   42/84 = 42 × 5/84 × 5 = 210/420
3. Likewise, for the 2nd fraction, since 30 × 14 = 420,
   5/30 = 5 × 14/30 × 14 = 70/420
4. Add the two like fractions:
   210/420 + 70/420 = 210 + 70/420 = 280/420
5. 280/420 simplified gives 2/3
6. So, 42/84 + 5/30 = 2/3

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