简便计算,快回答我,追50分,要有过程5.5*0.8+3.6/1.2-6.5*0.6 2/3+2/15+2/35+2/63+2/99+1/11
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简便计算,快回答我,追50分,要有过程5.5*0.8+3.6/1.2-6.5*0.6 2/3+2/15+2/35+2/63+2/99+1/11
简便计算,快回答我,追50分,要有过程
5.5*0.8+3.6/1.2-6.5*0.6 2/3+2/15+2/35+2/63+2/99+1/11
简便计算,快回答我,追50分,要有过程5.5*0.8+3.6/1.2-6.5*0.6 2/3+2/15+2/35+2/63+2/99+1/11
5.5*0.8+3.6/1.2-6.5*0.6
=4.4+3-3.9
=3+0.5
=3.5
2/3+2/15+2/35+2/63+2/99+1/11
=12/15+2/35+2/63+11/99
=4/5+2/35+2/63+1/9
=30/35+9/63
=6/7+1/7
=1
1.5.5*0.8+3.6/1.2-6.5*0.6 =4.4+3-3.9=3.5（这道题不需要简便方法，直接计算便可）
2.2/3+2/15+2/35+2/63+2/99+1/11
=1/11+2/99+2/63+2/35+2/15+2/3
1/9+2/63+2/35+2/15+2/3
=1/7+2/35+2/15+2/3
=1/5+2/15+2/3
=1（按顺序通分计算即可）
2/3+2/15+2/35+2/16+2/99+1/11 5.5*0.83.6/1.2-6.5*0.6
=2/3+2/63+2/15+2/35+2/99+1/11 =(5+1/2)*8/10+3-[(6+1/2)*6/10]
=42/63+2/63+14/105+6/105+2/99...
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2/3+2/15+2/35+2/16+2/99+1/11 5.5*0.83.6/1.2-6.5*0.6
=2/3+2/63+2/15+2/35+2/99+1/11 =(5+1/2)*8/10+3-[(6+1/2)*6/10]
=42/63+2/63+14/105+6/105+2/99+9/99 =40/10+8/20+3-(36/10+6/20)
=44/63+4/21+1/9 =88/20+3-78/20
=44/3*21+4/3*7+1/9 =10/20+3=3.5
=4/3+11/21+4/3*1/7+1/9
=4/3(11/21+1/7)+1/9
=4/3*2/3+1/9=7/9
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