' Nie tylko wynik ' - zbiór zadań i testów . Gimnazjum .
zad . 12 / 7
c ) 4 1/2 x 1 2/3 - 3 3/4
__________________ =
1 - 10/27 : 5/6
prooszę , zróbcie to na dzisiaj .
żeby nie było za późno .
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9/2 x 5/3 - 15/4 15/2 - 15/4 30/4 - 15/4
1- 10/27 x 6/5 = 1 - 4/9 = 5/9 =
15/4 x 9/5 = 27/4 = 6 3/4
c ) 4 1/2 x 1 2/3 - 3 3/4
__________________ =
1 - 10/27 : 5/6
9/2 * 5/3 - 15/4
= ----------------------- =
1 - (10/27)*(6/5)
15/2 - 15/4
= -------------------- =
1 - 4/9
30/4 -15/4
= ---------------- =
9/9 - 4/9
15/4
= ----------- =
5/9
= (15/4) : (5/9) =
= (15/4)*(9/5) =
= 27/4 =
= 6¾