Question

【1-(3/7+5/14)】÷1/7 4×【（5/6+2/3）÷6】 （32×1/4+17）÷5/12 能简便的简便

Answer 1

【1-(3/7+5/14)】÷1/7
=【1-(3/7+5/14)】*7
=1*7-(3/7+5/14)*7
=7-(3/7*7+5/14*7)
=7-(3+5/2)
=7-3-5/2
=4-5/2
=3/2

4×【（5/6+2/3）÷6】
=4×【（5/6+4/6）÷6】
=4×【3/2÷6】
=4×【3/2×1/6】
=4×1/4
=1

（32×1/4+17）÷5/12
=（8+17）÷5/12
=25÷5/12
=25*12/5
=5*12
=60

Answer 2

【1-(3/7+5/14)】÷1/7
=[1-(6/14+5/14)]÷1/7
=(1-9/14)÷1/7
=(14/14-9/14)÷1/7
=5/14÷1/7
=5/14x7
=5/2

4×【（5/6+2/3）÷6】
=4x[(5/6+4/6)÷6]
=4x(3/2÷6)
=4x(3/2x1/6)
=4x1/4
=1

（32×1/4+17）÷5/12
=(8+17)÷5/12
=25÷5/12
=25x12/5
=60