Answers

Add 30/18 and 50/72

1^st number: 1 12/18, 2^nd number: 50/72

30/18 + 50/72 is 85/36.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 72 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 18 × 4 = 72,
   30/18 = 30 × 4/18 × 4 = 120/72
3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
   50/72 = 50 × 1/72 × 1 = 50/72
4. Add the two like fractions:
   120/72 + 50/72 = 120 + 50/72 = 170/72
5. 170/72 simplified gives 85/36
6. So, 30/18 + 50/72 = 85/36
   In mixed form: 213/36

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