1除以(2除以3)除以(3除以4)除以(4除以5)除以(5除以6)除以(6除以7)=
问题描述:
1除以(2除以3)除以(3除以4)除以(4除以5)除以(5除以6)除以(6除以7)=
答
1÷(2÷3)÷(3÷4)÷(4÷5)÷(5÷6)÷(6÷7)
=1÷2×3÷3×4÷4×5÷5×6÷6×7
=1÷2×7
=0.5×7
=3.5
明白请采纳,
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