Answers

Add 90/60 and 15/4

1^st number: 1 30/60, 2^nd number: 3 3/4

90/60 + 15/4 is 21/4.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 60 and 4 is 60
   
   Next, find the equivalent fraction of both fractional numbers with denominator 60
2. For the 1st fraction, since 60 × 1 = 60,
   90/60 = 90 × 1/60 × 1 = 90/60
3. Likewise, for the 2nd fraction, since 4 × 15 = 60,
   15/4 = 15 × 15/4 × 15 = 225/60
4. Add the two like fractions:
   90/60 + 225/60 = 90 + 225/60 = 315/60
5. 315/60 simplified gives 21/4
6. So, 90/60 + 15/4 = 21/4
   In mixed form: 51/4

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