脱式计算能简算的要简算!1小时内答出来加分!3-(5/7+6/7*1/3)*2/3(5/8-1/4)*(8/9+1/3)1.75*6/7+3/14*7/4+3/45/6*5/9+5/9*1/6+2/3
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脱式计算能简算的要简算!1小时内答出来加分!3-(5/7+6/7*1/3)*2/3(5/8-1/4)*(8/9+1/3)1.75*6/7+3/14*7/4+3/45/6*5/9+5/9*1/6+2/3
脱式计算能简算的要简算!1小时内答出来加分!
3-(5/7+6/7*1/3)*2/3
(5/8-1/4)*(8/9+1/3)
1.75*6/7+3/14*7/4+3/4
5/6*5/9+5/9*1/6+2/3
脱式计算能简算的要简算!1小时内答出来加分!3-(5/7+6/7*1/3)*2/3(5/8-1/4)*(8/9+1/3)1.75*6/7+3/14*7/4+3/45/6*5/9+5/9*1/6+2/3
3-(5/7+6/7*1/3)*2/3
=3-(15/7+6/7)*2/9
=3-3*2/9
=3-2/3
=2又1/3
(5/8-1/4)*(8/9+1/3)
=3/8*(8/9+1/*3)
=3/8*8/9+3/8*1/3
=1/3+1/8
=11/24
1.75*6/7+3/14*7/4+3/4
=1.75*(6/7+3/14)+3/4
=7/4*15/14+3/4
=15/8+6/8
=21/8
=2又5/8
5/6*5/9+5/9*1/6+2/3
=5/9*(5/6+1/6)+2/3
=5/9+2/3
=11/9
=1又2/9
3-(5/7+6/7*1/3)*2/3
=3-(5/7+2/7)*2/3
=3-2/3=7/3
(5/8-1/4)*(8/9+1/3)
=3/8*(8/9+1/3)
=1/3+1/8=11/24
1.75*6/7+3/14*7/4+3/4
=7/4*6/7+3/8+3/4
=3/2+3/8+3/4
=21/8
5/6*5/9+5/9*1/6+2/3
=5/9(5/6+1/6)+2/3
=5/9+2/3
=11/9