Answers

Add 84/40 and 72/80

1^st number: 2 4/40, 2^nd number: 72/80

84/40 + 72/80 is 3/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 80 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 40 × 2 = 80,
   84/40 = 84 × 2/40 × 2 = 168/80
3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
   72/80 = 72 × 1/80 × 1 = 72/80
4. Add the two like fractions:
   168/80 + 72/80 = 168 + 72/80 = 240/80
5. 240/80 simplified gives 3/1
6. So, 84/40 + 72/80 = 3/1

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