Answers

Add 9/4 and 16/90

1^st number: 2 1/4, 2^nd number: 16/90

9/4 + 16/90 is 437/180.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 90 is 180
   
   Next, find the equivalent fraction of both fractional numbers with denominator 180
2. For the 1st fraction, since 4 × 45 = 180,
   9/4 = 9 × 45/4 × 45 = 405/180
3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
   16/90 = 16 × 2/90 × 2 = 32/180
4. Add the two like fractions:
   405/180 + 32/180 = 405 + 32/180 = 437/180
5. So, 9/4 + 16/90 = 437/180
   In mixed form: 277/180

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