0.75除以(0.24除以0.3)的巧算,递等式.
问题描述:
0.75除以(0.24除以0.3)的巧算,递等式.
答
=0.75÷(24÷30) 括号中被除数、除数一起放大100倍,商不变
=0.75÷(24÷3÷10)
=0.75÷(8÷10) 把括号中除法看成分数
=0.75X(10/8) 除以一个分数等于乘以这个分数的倒数
=(3/4)X(5/4) 0.75转成3/4, 约分
=3/5
=0.6
答
0.75/(0.24/0.3)
=0.75/(24/30)
=0.75/0.8
=0.9375
祝你愉快!
答
0.75除以(0.24除以0.3)
=0.75÷0.8
=75÷80
=0.9375
答
=3/4除以0.8
=3/4除以4/5
=15/16