(4/5-1/6-3/10)÷1/30等于多少？要过程

(4/5-1/6-3/10)÷1/30等于多少？要过程

(4/5-1/6-3/10)÷1/30
=(4/5-1/6-3/10)*30
=4/5*30-1/6*30-3/10*30
=24-5-9
=24-(5+9)
=24-14
=10

如图

3/10原式=1/3-1/4+1/4-1/5+1/5-1/6++1/29-1/30=1/3-1/30=3/10

4/5=24/30 1/6=5/30 3/10=9/30你代进去，最后除法可以变乘法，也就是乘以30，结果为10

（4/5-1/6-3/10）÷1/30
=（4/5-1/6-3/10）×30
=24-5-9
=10

(4/5-1/6-3/10)÷1/30
=（4/5-1/6-3/10）x30
=4/5x30-1/6x30-3/10x30
=24-5-9
=24-（5+9）
=24-14
=10