Answers

Add 80/42 and 36/45

1^st number: 1 38/42, 2^nd number: 36/45

80/42 + 36/45 is 284/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 45 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 42 × 15 = 630,
   80/42 = 80 × 15/42 × 15 = 1200/630
3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
   36/45 = 36 × 14/45 × 14 = 504/630
4. Add the two like fractions:
   1200/630 + 504/630 = 1200 + 504/630 = 1704/630
5. 1704/630 simplified gives 284/105
6. So, 80/42 + 36/45 = 284/105
   In mixed form: 274/105

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