Answers

Add 72/45 and 16/42

1^st number: 1 27/45, 2^nd number: 16/42

72/45 + 16/42 is 208/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 42 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 45 × 14 = 630,
   72/45 = 72 × 14/45 × 14 = 1008/630
3. Likewise, for the 2nd fraction, since 42 × 15 = 630,
   16/42 = 16 × 15/42 × 15 = 240/630
4. Add the two like fractions:
   1008/630 + 240/630 = 1008 + 240/630 = 1248/630
5. 1248/630 simplified gives 208/105
6. So, 72/45 + 16/42 = 208/105
   In mixed form: 1103/105

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