Question

Wyrażenie 2i1/2+(3:2,4-1i5/6) ma wartość :

A.1i3/4

B.4i1/30

C2i11/12

D. 1i5/12

Prosze o obliczenia.

2i1/2+(3:2,4-1i5/6) to to ułamiki

2. 55 000m kwadrarowych to:

.A.55ha

B.55a

C.5,5ha

D.5500a

Answer 1

2i1/2+(3:2,4-1i5/6)=5/2+(3*5/12-11/6)=5/2+(15/12-22/12)=5/2-7/12=

=30/12-7/12=23/12=1i11/12(w odp c powinno być chyba 1i11/12)

55 000m2 to 5,5ha

Answer 2

1)2,5 + (10/8 - 11/6) = 2,5 - 28/48 = 2,5 - 7/12=30/12 - 7/12 = 23/12= 1 11/12

 

2)C.