1/36÷(1/4+1/12-7/18-1/36)+(1/4+1/12-7/18-1/36)÷1/36.
问题描述:
÷(1 36
+1 4
-1 12
-7 18
)+(1 36
+1 4
-1 12
-7 18
)÷1 36
. 1 36
答
原式=
÷(-1 36
)+(1 12
+1 4
-1 12
-7 18
)×36=-1 36
+9+3-14+1=-11 3
.1 3