Answers

Add 72/42 and 28/18

1^st number: 1 30/42, 2^nd number: 1 10/18

72/42 + 28/18 is 206/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 18 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 42 × 3 = 126,
   72/42 = 72 × 3/42 × 3 = 216/126
3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
   28/18 = 28 × 7/18 × 7 = 196/126
4. Add the two like fractions:
   216/126 + 196/126 = 216 + 196/126 = 412/126
5. 412/126 simplified gives 206/63
6. So, 72/42 + 28/18 = 206/63
   In mixed form: 317/63

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