Answers

Add 12/45 and 54/35

1^st number: 12/45, 2^nd number: 1 19/35

12/45 + 54/35 is 38/21.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 35 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 45 × 7 = 315,
   12/45 = 12 × 7/45 × 7 = 84/315
3. Likewise, for the 2nd fraction, since 35 × 9 = 315,
   54/35 = 54 × 9/35 × 9 = 486/315
4. Add the two like fractions:
   84/315 + 486/315 = 84 + 486/315 = 570/315
5. 570/315 simplified gives 38/21
6. So, 12/45 + 54/35 = 38/21
   In mixed form: 117/21

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