Kuba7810
Rozwiązane

Oblicz.
6
5
7
+
15 3
2
+ 2
3
10
79% +54 - 33 =
35
1
13 17
+
25 25
=



Oblicz 6 5 7 15 3 2 2 3 10 79 54 33 35 1 13 17 25 25 class=

Odpowiedź :

Krystynapasek2

Odpowiedź:

6/5- 7/15 +2/3= 18/15- 7/15+ 10/15= 11/15+ 10/15= 21/15= 1 i 6/15= 1 i 2/3

  1 i 1/4- 2/3 + 2 i 5/6= 1 i 3/12 - 8/12 + 2 i 10/12= 15/12- 8/12 +2 i 10/12=

     = 7/12 + 2 i 10/12= 2 i 17/12= 3 i 5/12

    7 i 10/35 +5 i 4/7 - 2 i 2/5= 7 i 10/35 + 5 i 20/35 -2 i 14/35=

        = 12 i 30/35- 2 i 14/35=  10 i 16/35

1 i 13/25 + 17/25 -1 i 4/5= 1 i 30/25- 1 i 20/25 = 10/25= 2/5

Szczegółowe wyjaśnienie:

Odpowiedź:

6/5 - 7/15 + 2/3 = 36/30 - 14/30 + 20/30 = 22/30 + 20/30 = 42/30 = 1 i 12/30 = 1 i 4/10 = 1 i 2/5

1 i 1/4 - 2/3 + 2 i 5/6 = 1 i 3/12 - 8/12 + 2 i 10/12 = 15/12 - 8/12 + 2 i 10/12 = 7/12 + 2 i 10/12 = 2 i 17/12 = 3 i 5/12

7 i 10/35 + 5 i 4/7 - 3 i 2/5 = 7 i 10/35 + 5 i 20/35 - 3 i 14/35 = 12 i 30/35 - 3 i 14/35 = 9 i 16/35

1 i 13/25 + 17/25 - 1 i 4/5 = 1 i 13/25 + 17/25 - 1 i 20/25 = 1 i 30/25 - 1 i 20/25 = 10/25 = 2/5

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