Mathematics
Grade5
Easy

Question

Convert 38 fraction numerator 1 over denominator 2 end fraction grams into milligrams.

  1. 38500    
  2. 3.85    
  3. 3850    
  4. 0.385    

The correct answer is: 38500


    We know, 1 g = 1000mg
    38 fraction numerator 1 over denominator 2 end fraction g = 38 × 1000 + fraction numerator 1 over denominator 2 end fraction × 1000
    = 38000 + 500
    = 38500mg

    38 ½ gm = (2x 38 + 1)/ 2 = 77/2 gm
    1 gm = 1000 mg
    77/2 gm = 77/2 x 1000 = 38500 mg

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