Answers

Add 70/45 and 81/18

1^st number: 1 25/45, 2^nd number: 4 9/18

70/45 + 81/18 is 109/18.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 18 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 45 × 2 = 90,
   70/45 = 70 × 2/45 × 2 = 140/90
3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
   81/18 = 81 × 5/18 × 5 = 405/90
4. Add the two like fractions:
   140/90 + 405/90 = 140 + 405/90 = 545/90
5. 545/90 simplified gives 109/18
6. So, 70/45 + 81/18 = 109/18
   In mixed form: 61/18

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