Question

脱式计算(能简算的要简算)

[1-(1/4+3/8)]除以1/4
5/9*6+4/9除以1/6
一步一步列出算式!!!

Answer 1

[1-(1/4+3/8)]除以1/4
=[1-(2/8+3/8)]除以1/4
=(1-5/8)除以1/4
=3/8除以2/8
=3/8乘以8/2
=3/2
=1.5

5/9*6+4/9除以1/6
=30/9+4/9乘以6
=30/9+24/9
=54/9
=6

Answer 2

[1-(1/4+3/8)]除以1/4
=[1-(2/8+3/8)]除以1/4
=(1-5/8)除以1/4
=3/8除以2/8
=3/8乘以8/2
=3/2
=1.5

5/9*6+4/9除以1/6
=30/9+4/9乘以6
=30/9+24/9
=54/9
=6

Answer 3

[1-(1/4+3/8)]除以1/4=[1-(1/4+3/8)]*4=4-(1+3/2)=3/2
5/9*6+4/9除以1/6=5/9*6+4/9*6=(5/9+4/9)*6=1*6=6

Answer 4

[1-(1/4+3/8)]除以1/4=[1-(1/4+3/8)]*4=4-(1+3/2)=3/2
5/9*6+4/9除以1/6=5/9*6+4/9*6=(5/9+4/9)*6=1*6=6

Answer 5

[1-(1/4+3/8)]/1/4
=[1-(1/4+3/8)]*4
=4-1-3/2
=3-3/2
=1.5