(4分之3-3分之1+6分之5)*12 4分之3*8.4+2.6*百分之75-0.75 灵活合理地计算
问题描述:
(4分之3-3分之1+6分之5)*12 4分之3*8.4+2.6*百分之75-0.75 灵活合理地计算
答
(4分之3-3分之1+6分之5)*12
=(3/4-1/3+5/6)×12
=9-4+10
=15
4分之3*8.4+2.6*百分之75-0.75
=0.75*8.4+2.6*0.75-0.75
=0.75*(8.4+2.6-1)
=0.75*10
=7.536.25-(19.8-3.75)-4.2灵活合理地计算36.25-(19.8-3.75)-4.2 =36.25-19.8+3.75-4.2=36.25+3.75-19.8-4.2=40-24=168分之7*【(5分之4-2分之1)*6分之5】灵活合理地计算8分之7*【(5分之4-2分之1)*6分之5】=7/8*(2/3-5/12)=7/8*(8/12-5/12)=7/8*1/4=7/32