Answers

Add 70/18 and 84/72

1^st number: 3 16/18, 2^nd number: 1 12/72

70/18 + 84/72 is 91/18.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 72 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 18 × 4 = 72,
   70/18 = 70 × 4/18 × 4 = 280/72
3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
   84/72 = 84 × 1/72 × 1 = 84/72
4. Add the two like fractions:
   280/72 + 84/72 = 280 + 84/72 = 364/72
5. 364/72 simplified gives 91/18
6. So, 70/18 + 84/72 = 91/18
   In mixed form: 51/18

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