Answers

Add 42/18 and 1/72

1^st number: 2 6/18, 2^nd number: 1/72

42/18 + 1/72 is 169/72.

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,
   42/18 = 42 × 4/18 × 4 = 168/72
3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
   1/72 = 1 × 1/72 × 1 = 1/72
4. Add the two like fractions:
   168/72 + 1/72 = 168 + 1/72 = 169/72
5. So, 42/18 + 1/72 = 169/72
   In mixed form: 225/72

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