Answers

Add 42/24 and 45/84

1^st number: 1 18/24, 2^nd number: 45/84

42/24 + 45/84 is 16/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 24 and 84 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 24 × 7 = 168,
   42/24 = 42 × 7/24 × 7 = 294/168
3. Likewise, for the 2nd fraction, since 84 × 2 = 168,
   45/84 = 45 × 2/84 × 2 = 90/168
4. Add the two like fractions:
   294/168 + 90/168 = 294 + 90/168 = 384/168
5. 384/168 simplified gives 16/7
6. So, 42/24 + 45/84 = 16/7
   In mixed form: 22/7

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