小学六年级上册数学书的练习九第一题答案3/5×1/6×5/7=?2-6/13÷9/26-2/3=?(0.75-3/16)×(2/9+1/3)=?[1-(1/4+3/8)]÷1/4
2019-06-20
小学六年级上册数学书的练习九第一题答案3/5×1/6×5/7=?2-6/13÷9/26-2/3=?
(0.75-3/16)×(2/9+1/3)=?[1-(1/4+3/8)]÷1/4
优质解答
(0.75-3/16)×(2/9+1/3)
=(3/4-3/16)×(2/9+3/9)
=(9/16)×(5/9)
=5/16
[1-(1/4+3/8)]÷1/4
=[1-(2/8+3/8)]×4
=(1-5/8)×4
=3/8×4
=3/2
(0.75-3/16)×(2/9+1/3)
=(3/4-3/16)×(2/9+3/9)
=(9/16)×(5/9)
=5/16
[1-(1/4+3/8)]÷1/4
=[1-(2/8+3/8)]×4
=(1-5/8)×4
=3/8×4
=3/2