What is 9 3 − 1 2 ?

Question

What is       9    3    −      1    2  ?

Zichetti4b · Accepted Answer

9    3    −      1    2    =  3  −      1    2    =      6    2    −      1    2    =      5    2    or      9    3    −      1    2    =            9      ×      2      −      3      ×      1        6    =      15    6    =      5    2

Cierra Castillo · Accepted Answer

So we are trying to compute       9    3    −      1    2  . To add or subtract fractions, we need to find a common denominator. I think you already understand that the common denominator here is 6.To get a 6 in the denominator of       9    3  , we need to multiply this by       2    2  ,  and so this becomes       18    6  . To get a 6 in the denominator of       1    2   , we need to multiply this by       3    3   , and we get       3    6  So, we get       9    3    −      1    2    =      9    3    ⋅      2    2    −      1    2    ⋅      3    3    =      18    6    −      3    6    =            18      −      3        6    =      15    6  But the numerator and denominator have a common factor of 3, since    15  =  5  ⋅  3 and   6  =  2  ⋅  3 , so we can cancel the 3s, and we get:      15    6    =            5      ⋅      3              2      ⋅      3        =      5    2

What is 9

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