Answers

Add 84/40 and 70/18

1^st number: 2 4/40, 2^nd number: 3 16/18

84/40 + 70/18 is 539/90.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 40 and 18 is 360
   
   Next, find the equivalent fraction of both fractional numbers with denominator 360
2. For the 1st fraction, since 40 × 9 = 360,
   84/40 = 84 × 9/40 × 9 = 756/360
3. Likewise, for the 2nd fraction, since 18 × 20 = 360,
   70/18 = 70 × 20/18 × 20 = 1400/360
4. Add the two like fractions:
   756/360 + 1400/360 = 756 + 1400/360 = 2156/360
5. 2156/360 simplified gives 539/90
6. So, 84/40 + 70/18 = 539/90
   In mixed form: 589/90

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