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$3÷4= 3:(
$4÷8= 2:(
$1÷5= 2:(
$3:8= 9÷(
$5:8= (
$3:5= 9÷(
$(
$7÷8= 21:(
$2÷5= (
$4÷(
$1÷2= 8:(
$1÷8= 3:(
4
)= (9
):12= \frac{18}{(24
)}= (0.75
)$$4÷8= 2:(
4
)= (8
):16= \frac{(20
)}{40}= (0.5
)$$1÷5= 2:(
10
)= (4
):20= \frac{(8
)}{40}= (0.2
)$$3:8= 9÷(
24
)= (15
):40= \frac{12}{(32
)}= (0.375
)$$5:8= (
20
)÷32= 40:(64
)= \frac{(25
)}{40}= (0.625
)$$3:5= 9÷(
15
)= (15
):25= \frac{(18
)}{30}= (0.6
)$$(
2
):8= 1÷4= (8
):32= \frac{12}{(48
)}= (0.25
)$$7÷8= 21:(
24
)= (49
):56= \frac{28}{(32
)}= (0.875
)$$2÷5= (
8
):20= (14
):35= \frac{18}{(45
)}= (0.4
)$$4÷(
5
)= 8:10= (24
):30= \frac{(20
)}{25}= (0.8
)$$1÷2= 8:(
16
)= (12
):24= \frac{(15
)}{30}= (0.5
)$$1÷8= 3:(
24
)= (5
):40= \frac{(4
)}{32}= (0.125
)$
答案：
$3÷4= 3:(4)= (9):12= \frac{18}{(24)}= (0.75)$
$4÷8= 2:(4)= (8):16= \frac{(20)}{40}= (0.5)$
$1÷5= 2:(10)= (4):20= \frac{(8)}{40}= (0.2)$
$3:8= 9÷(24)= (15):40= \frac{12}{(32)}= (0.375)$
$5:8= (20)÷32= 40:(64)= \frac{(25)}{40}= (0.625)$
$3:5= 9÷(15)= (15):25= \frac{(18)}{30}= (0.6)$
$(2):8= 1÷4= (8):32= \frac{12}{(48)}= (0.25)$
$7÷8= 21:(24)= (49):56= \frac{28}{(32)}= (0.875)$
$2÷5= (8):20= (14):35= \frac{18}{(45)}= (0.4)$
$4÷(5)= 8:10= (24):30= \frac{(20)}{25}= (0.8)$
$1÷2= 8:(16)= (12):24= \frac{(15)}{30}= (0.5)$
$1÷8= 3:(24)= (5):40= \frac{(4)}{32}= (0.125)$
$4÷8= 2:(4)= (8):16= \frac{(20)}{40}= (0.5)$
$1÷5= 2:(10)= (4):20= \frac{(8)}{40}= (0.2)$
$3:8= 9÷(24)= (15):40= \frac{12}{(32)}= (0.375)$
$5:8= (20)÷32= 40:(64)= \frac{(25)}{40}= (0.625)$
$3:5= 9÷(15)= (15):25= \frac{(18)}{30}= (0.6)$
$(2):8= 1÷4= (8):32= \frac{12}{(48)}= (0.25)$
$7÷8= 21:(24)= (49):56= \frac{28}{(32)}= (0.875)$
$2÷5= (8):20= (14):35= \frac{18}{(45)}= (0.4)$
$4÷(5)= 8:10= (24):30= \frac{(20)}{25}= (0.8)$
$1÷2= 8:(16)= (12):24= \frac{(15)}{30}= (0.5)$
$1÷8= 3:(24)= (5):40= \frac{(4)}{32}= (0.125)$
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