Answers

Add 20/80 and 84/40

1^st number: 20/80, 2^nd number: 2 4/40

20/80 + 84/40 is 47/20.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 80 and 40 is 80
   
   Next, find the equivalent fraction of both fractional numbers with denominator 80
2. For the 1st fraction, since 80 × 1 = 80,
   20/80 = 20 × 1/80 × 1 = 20/80
3. Likewise, for the 2nd fraction, since 40 × 2 = 80,
   84/40 = 84 × 2/40 × 2 = 168/80
4. Add the two like fractions:
   20/80 + 168/80 = 20 + 168/80 = 188/80
5. 188/80 simplified gives 47/20
6. So, 20/80 + 84/40 = 47/20
   In mixed form: 27/20

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