Question

find the difference of?

Answer 1

a) 7 17/18 can be written as 143/18 & 6 15/36 can be written as 231/36.
   For subtraction denominators should be same. So, we find LCM = 36. Multiply 143/18 with 2/2 to get 286/36.
        Difference  = 286/36 - 231/36 = (286 - 231)/36 = 56/36(56 & 36 can be                                                                                                        canceled with 4)
                                                                                   = 14/9
  
         So, 14/9 is the answer

2)15 4/5 can be written as 79/5 & 11 9/10 can be written as 119/10. LCM of 5 & 10 is 10.   79/5 x 2/2 = 158/10.
 
                    Difference = 158/10 - 119/10 = (158 - 119)/10 = 39/10
 
            So, the answer is 39/10 or 3.9

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Answer 2

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