Answers

Add 84/72 and 18/84

1^st number: 1 12/72, 2^nd number: 18/84

84/72 + 18/84 is 29/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 84 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 72 × 7 = 504,
   84/72 = 84 × 7/72 × 7 = 588/504
3. Likewise, for the 2nd fraction, since 84 × 6 = 504,
   18/84 = 18 × 6/84 × 6 = 108/504
4. Add the two like fractions:
   588/504 + 108/504 = 588 + 108/504 = 696/504
5. 696/504 simplified gives 29/21
6. So, 84/72 + 18/84 = 29/21
   In mixed form: 18/21

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