Answers

Add 84/5 and 72/42

1^st number: 16 4/5, 2^nd number: 1 30/42

84/5 + 72/42 is 648/35.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 5 and 42 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 5 × 42 = 210,
   84/5 = 84 × 42/5 × 42 = 3528/210
3. Likewise, for the 2nd fraction, since 42 × 5 = 210,
   72/42 = 72 × 5/42 × 5 = 360/210
4. Add the two like fractions:
   3528/210 + 360/210 = 3528 + 360/210 = 3888/210
5. 3888/210 simplified gives 648/35
6. So, 84/5 + 72/42 = 648/35
   In mixed form: 1818/35

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