Answers

Add 20/90 and 84/28

1^st number: 20/90, 2^nd number: 3 0/28

20/90 + 84/28 is 29/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 28 is 1260
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1260
2. For the 1st fraction, since 90 × 14 = 1260,
   20/90 = 20 × 14/90 × 14 = 280/1260
3. Likewise, for the 2nd fraction, since 28 × 45 = 1260,
   84/28 = 84 × 45/28 × 45 = 3780/1260
4. Add the two like fractions:
   280/1260 + 3780/1260 = 280 + 3780/1260 = 4060/1260
5. 4060/1260 simplified gives 29/9
6. So, 20/90 + 84/28 = 29/9
   In mixed form: 32/9

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