Answers

Add 84/80 and 49/20

1^st number: 1 4/80, 2^nd number: 2 9/20

84/80 + 49/20 is 7/2.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 20 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 80 × 1 = 80,
   84/80 = 84 × 1/80 × 1 = 84/80
3. Likewise, for the 2nd fraction, since 20 × 4 = 80,
   49/20 = 49 × 4/20 × 4 = 196/80
4. Add the two like fractions:
   84/80 + 196/80 = 84 + 196/80 = 280/80
5. 280/80 simplified gives 7/2
6. So, 84/80 + 49/20 = 7/2
   In mixed form: 31/2

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