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Answer

             2/3 L = 3/8 KC

   (×3)  6/9L  = 6/16 KC (×2)

    L  -> 9u

   KC -> 16u

Diff -> 16u-9u

       = 7u

7u = 7/10kg

1u = 7/10kg ÷ 7

      = 7/10kg × 1/7

       = 1/10kg

Mass of King Crab = 16u

                                   = 16 × 1/10 kg

                                    = 1  6/10 kg

                                    = 1  3/5 kg (ans)

 

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This is a Equal fraction question. 

LCM

2/3 = 6/9

3/8 = 6/16

       Lobster    Crab        
Part   6u 6u  
Whole    9u 16u  
       

16u – 9u = 7/10

7u = 7/10

1u = 1/10 

16u = 16 × 1/10 = 16/10 = 1 3/5 kg

 

 

 

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This is a Equal fraction question. 

LCM

2/3 = 6/9

3/8 = 6/16

       Lobster    Crab        
Part   6u 6u  
Whole    9u 16u  
       

16u – 9u = 7/10

7u = 7/10

1u = 1/10 

16u = 16 × 1/10 = 16/10 = 1 3/5 kg

 

 

 

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3 x 8 x 2 = 48 (mass of a king crab)
(3/8) x 48 = 18
18 x (3/2) = 27 (mass of a lobster)
48 – 27 = 21
21 units = 7/10
1 unit = (7/10)/21 = 1/30
48 units = 48/30 = 1 3/5

Ans : 1 3/5 kg.

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