Question

zadanie 5 strona 48 oblicz​

Answer 1

a)  1 1/3 · 2/5 = 4/3 · 2/5 = 8/15

b)  4 1/2 · 3/4 = 9/2 · 3/4 = 27/8 = 3 i 3/8

c)  5/7 · 2 3/4 = 5/7 · 11/4 = 55/28 = 1 i 27/28

d)  2 4/5 · 3 2/3 = 14/5 · 11/4 = 154/15 = 10 i 4/15

e)  1 2/3 · 2 1/7 = 5/3 ·15/7 = 75/21 = 3 i 12/21 = 3 i 4/7

f)  3 1/4 · 1 2/5 = 13/4 · 7/5 = 91/20 = 4 i 11/20  

Answer 2

Odpowiedź:

A)

B)

C)

D)

E)

F)