能简算的要简算1-(5/7+3/14÷3/4)×2/7
问题描述:
能简算的要简算1-(5/7+3/14÷3/4)×2/7
答
1-(5/7+3/14÷3/4)×2/7
=1-(5/7+3/14×4/3)×2/7
=1-(5/7+2/7)×2/7
=1-2/7
=5/7
答
1-(5/7+3/14÷3/4)×2/7
=1-(5/7+3/14*4/3)×2/7
=1-(5/7+2/7)×2/7
=1-2/7
=5/7
答
1-(5/7+3/14÷3/4)×2/7
= 1 - ( 5/7 + 3 / 14 × 4 / 3 ) × 2 / 7
= 1 - ( 5 / 7 + 4 / 14 ) × 2 / 7
= 1 - ( 5 / 7 + 2 / 7 ) × 2 / 7
= 1 - 1 × 2 / 7
= 1 - 2 / 7
= 5 / 7