Answers

Add 84/42 and 3/72

1^st number: 2 0/42, 2^nd number: 3/72

84/42 + 3/72 is 49/24.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 42 × 12 = 504,
   84/42 = 84 × 12/42 × 12 = 1008/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   3/72 = 3 × 7/72 × 7 = 21/504
4. Add the two like fractions:
   1008/504 + 21/504 = 1008 + 21/504 = 1029/504
5. 1029/504 simplified gives 49/24
6. So, 84/42 + 3/72 = 49/24
   In mixed form: 21/24

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