Question

脱式计算,注意计算简便1/6+3/4*2/3除以2[1-（1/4+3/8）]除以1/4

Answer 1

1/6+3/4×2/3÷2

=1/6+1/2÷2

=1/6+1/4

=5/12

[1-(1/4+3/8)]÷1/4

=[1-5/8]÷1/4

=3/8÷1/4

=3/2

=1.5