Answers

Add 15/4 and 18/72

1^st number: 3 3/4, 2^nd number: 18/72

15/4 + 18/72 is 4/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 4 and 72 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 4 × 18 = 72,
   15/4 = 15 × 18/4 × 18 = 270/72
3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
   18/72 = 18 × 1/72 × 1 = 18/72
4. Add the two like fractions:
   270/72 + 18/72 = 270 + 18/72 = 288/72
5. 288/72 simplified gives 4/1
6. So, 15/4 + 18/72 = 4/1

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