(17727+27717−113739)÷(131217+81727−53839)=( ) A.2 B.12 C.233333 D.23
问题描述:
(17
+277 27
−117 17
)÷(1337 39
+812 17
−517 27
)=( )38 39
A. 2
B.
1 2
C.
233 333
D.
2 3
答
(17
+277 27
−117 17
)÷(1337 39
+812 17
−517 27
)38 39
=(
+466 27
-466 17
)÷(466 39
+233 17
-233 27
)233 39
=466÷233
=2.
故选A.