Answers

Add 70/45 and 12/54

1^st number: 1 25/45, 2^nd number: 12/54

70/45 + 12/54 is 16/9.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 54 is 270
   
   Next, find the equivalent fraction of both fractional numbers with denominator 270
2. For the 1st fraction, since 45 × 6 = 270,
   70/45 = 70 × 6/45 × 6 = 420/270
3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
   12/54 = 12 × 5/54 × 5 = 60/270
4. Add the two like fractions:
   420/270 + 60/270 = 420 + 60/270 = 480/270
5. 480/270 simplified gives 16/9
6. So, 70/45 + 12/54 = 16/9
   In mixed form: 17/9

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