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Oblicz:
a) 1 1/2×4/5
b) 2 1/4×5/6×1 3/5
c) 1/2:3/4
d) 1 1/3:1 1/2


Odpowiedź :

Odpowiedź:

1 i 1/2 * 4/5 = 3/2 * 4/5 = 6/5 = 1 i 1/5

2 i 1/4 * 5/6 * 1 i 3/5 = 9/4 * 5/6 * 8/5 = 15/8 * 8/5 = 3

1/2 : 3/4 = 1/2 * 4/3 = 2/3

1 i 1/3 : 1 i 1/2 = 4/3 : 3/2 = 4/3 * 2/3 = 8/9

A)
3/2 • 4/5 = 6/5 = 1 1/5
B)
9/4 • 5/6 • 8/5 = 360/120 = 3
C)
1/2 • 4/3 = 4/12 = 1/3
D)
4/3 : 3/2 = 4/3 • 2/3 = 8/9