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](/uploads/image/z/3922945-25-5.jpg?t=%E7%AE%80%E4%BE%BF%E8%AE%A1%E7%AE%97%2C%E5%BF%AB%E5%9B%9E%E7%AD%94%E6%88%91%2C%E8%BF%BD50%E5%88%86%2C%E8%A6%81%E6%9C%89%E8%BF%87%E7%A8%8B5.5%2A0.8%2B3.6%2F1.2-6.5%2A0.6++++++++++++++++2%2F3%2B2%2F15%2B2%2F35%2B2%2F63%2B2%2F99%2B1%2F11)
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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