下面各题怎样简便就怎样算。 (要写出算式)
9分之7-(6分之1+9分之4)=,5-11分之5-11分之6=,4分之3-9分之2+4分之1=,6分之5-9分之4+6分之1-9分之2=,8分之5+8分之1-10分之3...
9分之7-(6分之1+9分之4)= ,5-11分之5-11分之6= ,4分之3-9分之2+4分之1= ,6分之5-9分之4+6分之1-9分之2= ,8分之5+8分之1-10分之3-10分之1= ,10分之9-(10分之1+5分之2)=
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7/9-(1/6+4/9) 5-5/11-6/11 3/4-2/9+1/4 5/6-4/9+1/6-2/9
=7/9-4/9-1/6 =5-(5/11+6/11) =3/4+1/4-2/9 =(5/6+1/6)-(4/9+2/9)
=1/3-1/6 =5-1 =1-2/9 = 1-2/3
=1/6 =4 =7/9 =1/3
5/8+1/8-3/10-1/10 9/10-(1/10+2/5)
=(5/8+1/8)-(3/10+1/10) =9/10-1/10-2/5
=3/4-2/5 =4/5-2/5
=7/20 =2/5
=7/9-4/9-1/6 =5-(5/11+6/11) =3/4+1/4-2/9 =(5/6+1/6)-(4/9+2/9)
=1/3-1/6 =5-1 =1-2/9 = 1-2/3
=1/6 =4 =7/9 =1/3
5/8+1/8-3/10-1/10 9/10-(1/10+2/5)
=(5/8+1/8)-(3/10+1/10) =9/10-1/10-2/5
=3/4-2/5 =4/5-2/5
=7/20 =2/5
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7/9-(1/6+4/9) 5-5/11-6/11 3/4-2/9+1/4 5/6-4/9+1/6-2/9
=7/9-4/9-1/6 =5-(5/11+6/11) =3/4+1/4-2/9 =(5/6+1/6)-(4/9+2/9)
=1/3-1/6 =5-1 =1-2/9 = 1-2/3
=1/6 =4 =7/9 =1/3
5/8+1/8-3/10-1/10 9/10-(1/10+2/5)
=(5/8+1/8)-(3/10+1/10) =9/10-1/10-2/5
=3/4-2/5 =4/5-2/5
=7/20 =2/5
望采纳
=7/9-4/9-1/6 =5-(5/11+6/11) =3/4+1/4-2/9 =(5/6+1/6)-(4/9+2/9)
=1/3-1/6 =5-1 =1-2/9 = 1-2/3
=1/6 =4 =7/9 =1/3
5/8+1/8-3/10-1/10 9/10-(1/10+2/5)
=(5/8+1/8)-(3/10+1/10) =9/10-1/10-2/5
=3/4-2/5 =4/5-2/5
=7/20 =2/5
望采纳
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7/9-(1/6+4/9)=7/9-4/9-1/6=3/9-1/6=1/6
5-5/11-6/11=5-(5/11+6/11)=5-1=4
5-5/11-6/11=5-(5/11+6/11)=5-1=4
追问
4分之3-9分之2+4分之1= ,6分之5-9分之4+6分之1-9分之2= ,8分之5+8分之1-10分之3-10分之1= ,10分之9-(10分之1+5分之2)=
追答
4分之3-9分之2+4分之1=7/9 ,6分之5-9分之4+6分之1-9分之2=1/3 ,8分之5+8分之1-10分之3-10分之1= 7/20 ,10分之9-(10分之1+5分之2)=2/5
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