Answers

Add 15/4 and 8/90

1^st number: 3 3/4, 2^nd number: 8/90

15/4 + 8/90 is 691/180.

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,
   15/4 = 15 × 45/4 × 45 = 675/180
3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
   8/90 = 8 × 2/90 × 2 = 16/180
4. Add the two like fractions:
   675/180 + 16/180 = 675 + 16/180 = 691/180
5. So, 15/4 + 8/90 = 691/180
   In mixed form: 3151/180

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