Answers

Add 90/4 and 15/72

1^st number: 22 2/4, 2^nd number: 15/72

90/4 + 15/72 is 545/24.

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,
   90/4 = 90 × 18/4 × 18 = 1620/72
3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
   15/72 = 15 × 1/72 × 1 = 15/72
4. Add the two like fractions:
   1620/72 + 15/72 = 1620 + 15/72 = 1635/72
5. 1635/72 simplified gives 545/24
6. So, 90/4 + 15/72 = 545/24
   In mixed form: 2217/24

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