Answers

Add 12/42 and 54/45

1^st number: 12/42, 2^nd number: 1 9/45

12/42 + 54/45 is 52/35.

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,
   12/42 = 12 × 15/42 × 15 = 180/630
3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
   54/45 = 54 × 14/45 × 14 = 756/630
4. Add the two like fractions:
   180/630 + 756/630 = 180 + 756/630 = 936/630
5. 936/630 simplified gives 52/35
6. So, 12/42 + 54/45 = 52/35
   In mixed form: 117/35

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