Answers

Add 72/42 and 84/8

1^st number: 1 30/42, 2^nd number: 10 4/8

72/42 + 84/8 is 171/14.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 8 is 168
   
   Next, find the equivalent fraction of both fractional numbers with denominator 168
2. For the 1st fraction, since 42 × 4 = 168,
   72/42 = 72 × 4/42 × 4 = 288/168
3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
   84/8 = 84 × 21/8 × 21 = 1764/168
4. Add the two like fractions:
   288/168 + 1764/168 = 288 + 1764/168 = 2052/168
5. 2052/168 simplified gives 171/14
6. So, 72/42 + 84/8 = 171/14
   In mixed form: 123/14

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