Answers

Add 84/72 and 20/24

1^st number: 1 12/72, 2^nd number: 20/24

84/72 + 20/24 is 2/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 24 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 72 × 1 = 72,
   84/72 = 84 × 1/72 × 1 = 84/72
3. Likewise, for the 2nd fraction, since 24 × 3 = 72,
   20/24 = 20 × 3/24 × 3 = 60/72
4. Add the two like fractions:
   84/72 + 60/72 = 84 + 60/72 = 144/72
5. 144/72 simplified gives 2/1
6. So, 84/72 + 20/24 = 2/1

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