Answers

Add 84/45 and 18/70

1^st number: 1 39/45, 2^nd number: 18/70

84/45 + 18/70 is 223/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 45 and 70 is 630
   
   Next, find the equivalent fraction of both fractional numbers with denominator 630
2. For the 1st fraction, since 45 × 14 = 630,
   84/45 = 84 × 14/45 × 14 = 1176/630
3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
   18/70 = 18 × 9/70 × 9 = 162/630
4. Add the two like fractions:
   1176/630 + 162/630 = 1176 + 162/630 = 1338/630
5. 1338/630 simplified gives 223/105
6. So, 84/45 + 18/70 = 223/105
   In mixed form: 213/105

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