3. Oblicz
a) 1/3 + 1/8 + 1/6 =
b) 1 i 3/4 + 2 i 4/5 +3 i 3/10 =
c) 10 - (5 i 1/4 - 1 i 5/6) =​



3 Oblicz A 13 18 16 B 1 I 34 2 I 45 3 I 310 C 10 5 I 14 1 I 56 class=

Odpowiedź :

Odpowiedź:

zad 3

a)

1/3 + 1/8+ 1/6 = 8/24 + 3/24 + 4/24 = 15/24 = 5/8

b)

1 3/4 + 2 4/5 + 3 3/10 = 1 15/20 + 2 16/20 + 3 6/20 = 6 37/20 = 7 17/20

c)

10 - (5 1/4 - 1 5/6) = 10 - ( 5 3/12 - 1 10/12) = 10 - ( 4 15/12 - 1 10/12) =

= 10 - 3 5/12 = 9 12/12 - 3 5/12 = 6 7/12