Answers

Add 84/20 and 84/90

1^st number: 4 4/20, 2^nd number: 84/90

84/20 + 84/90 is 77/15.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 20 and 90 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 20 × 9 = 180,
   84/20 = 84 × 9/20 × 9 = 756/180
3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
   84/90 = 84 × 2/90 × 2 = 168/180
4. Add the two like fractions:
   756/180 + 168/180 = 756 + 168/180 = 924/180
5. 924/180 simplified gives 77/15
6. So, 84/20 + 84/90 = 77/15
   In mixed form: 52/15

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