加减乘除都可以用吗?
1/3÷1/3=1 1/4÷1/4=1 1/8÷1/8=1
(1/2-1/4)÷1/4=1 (1/4-1/8)÷1/8=1 (1/4+1/4)÷1/2=1
1/2+1/4+1/4=1 1/2+1/8+1/8+1/8+1/8=1 1/2+1/4+1/8+1/8=1
1/8+1/8+1/8+1/8+1/8+1/8+1/8+1/8=1
(1/8+1/8)÷1/8×1/2=1 (1/8+1/8+1/8)÷1/8×1/3=1
(1/8+1/8+1/8+1/8)÷1/8×1/4=1 (1/8+1/8+1/8+1/8+1/8+1/8+1/8+1/8)÷1/8×1/8=1
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