Answers

Add 70/54 and 90/12

1^st number: 1 16/54, 2^nd number: 7 6/12

70/54 + 90/12 is 475/54.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 12 is 108
   
   Next, find the equivalent fraction of both fractional numbers with denominator 108
2. For the 1st fraction, since 54 × 2 = 108,
   70/54 = 70 × 2/54 × 2 = 140/108
3. Likewise, for the 2nd fraction, since 12 × 9 = 108,
   90/12 = 90 × 9/12 × 9 = 810/108
4. Add the two like fractions:
   140/108 + 810/108 = 140 + 810/108 = 950/108
5. 950/108 simplified gives 475/54
6. So, 70/54 + 90/12 = 475/54
   In mixed form: 843/54

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