根据除以分数,等于乘以分数的倒数,原题可以变为:
=1X3/2X4/3X5/4X6/5
=(1X3X4X5X6)/(2X3X4X5)
分子分母约分有(3,4,5约掉)
=1X6/2
=3
根据除以分数,等于乘以分数的倒数: 1X3÷2X4÷3X5÷4X6÷5
=(1X3X4X5X6)÷(2X3X4X5)
分子分母约分有(3,4,5约掉) 1X6÷2 =3
=1x3/2x4/3x5/4x6/5
=3
利用甲数除以乙数(0除外),等于甲数乘乙数的倒数。然后约分。