Odpowiedź:
B
Szczegółowe wyjaśnienie:
A. (2*1 1/4 - 1/4) : 1/8=(2·5/4-1/4):1/8=(10/4-1/4):1/8=(2 1/2-1/4):1/8=
=(2 2/4-1/4):1/8=2 1/4:1/8=9/4·8/1=72/4=18
B. 2*1 1/4 - 1/4 : 1/8=(2·5/4-1/4·8/1)=2 1/2-2=1/2
C. 2*(1 1/4 - 1/4 : 1/8)=2(1 1/4-1/4·8/1)=2(1 1/4-2)=2·(-3/4)=-1 1/2
D. 2*(1 1/4 - 1/4) : 1/8=2·1:1/8=2·8/1=16
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Odpowiedź:
B
Szczegółowe wyjaśnienie:
A. (2*1 1/4 - 1/4) : 1/8=(2·5/4-1/4):1/8=(10/4-1/4):1/8=(2 1/2-1/4):1/8=
=(2 2/4-1/4):1/8=2 1/4:1/8=9/4·8/1=72/4=18
B. 2*1 1/4 - 1/4 : 1/8=(2·5/4-1/4·8/1)=2 1/2-2=1/2
C. 2*(1 1/4 - 1/4 : 1/8)=2(1 1/4-1/4·8/1)=2(1 1/4-2)=2·(-3/4)=-1 1/2
D. 2*(1 1/4 - 1/4) : 1/8=2·1:1/8=2·8/1=16