Question

X=$\frac-{5}{9} + 3 \frac-{7}{6}$
por favor respondo longo pois e para hoje a tarde

Answer 1

e - 5 nonnos + 3 - 7 sextos


    x =  -  5/9 + 3 - 7/6
                5                   7
 x =  -   -------- + 3    - ---------
                9                  6                      mmc(9,6)  9,6| 2
                                                                              9,3| 3
                                                                              3,1| 3
                                                                               1,1/    = 2.3.3 = 18
       - 2(5) + 18(3) - 3(7)
x = ------------------------------------
                     18


          - 10 + 54 - 21
x =   --------------------
                     18

        - 31 + 54
x  = ----------------------
               18

          23
x = ----------
         18