1樓:匿名使用者
第一題乘法分配律分復
別乘,制11
第二題先算除法,化到12/14,再減,
bai1/14
第三題分
du配zhi
第四題先把後面變dao成4/9*5/6,再提取5/6,分配律,5/6第五題變成4*5/4-4/5*1/4,直接算,四又五分之四第六題先算中括號裡的,再算外面,70/11
2樓:愛學習的人
題:du5/9x(9/5+18) 5/9x5/6+4/9÷
zhi6/5
=dao5/9×9/5+5/9×18 =5/9×5/6+4/9×5/6
=1+10 =(5/9+4/9)×5/6
=11 =1×5/6
=5/6
13/14-15/28÷5/8 4÷4/5-4/5÷4
=13/14-15/28×8/5 =4×5/4-4/5×1/4
=13/14-3/7×2 =5+1/5
=13/14-6/7 =26/5
=1/14
(5/6-3/4)÷3/8 7/11÷[2/5-(1-7/10)}
=(5/6-3/4)×8/3 =7/11÷[2/5-3/10]
=5/6×8/3-3/4×8/3 =7/11÷1/10
=20/9-2 =70/11
=2/9
3樓:匿名使用者
5/9x(9/5+18) 5/9x5/6+4/9÷6/5
=5/9×9/5+5/9×18 =5/9×5/6+4/9×5/6
=1+10 =(5/9+4/9)×5/6
=11 =1×5/6
=5/6
13/14-15/28÷5/8 4÷4/5-4/5÷4
=13/14-15/28×8/5 =4×5/4-4/5×1/4
=13/14-3/7×2 =5+1/5
=13/14-6/7 =26/5
=1/14
(5/6-3/4)÷3/8 7/11÷[2/5-(1-7/10)}
=(5/6-3/4)×8/3 =7/11÷[2/5-3/10]
=5/6×8/3-3/4×8/3 =7/11÷1/10
=20/9-2 =70/11
=2/9
4樓:羅未家憶雪
題:5/9x(9/5+18)
5/9x5/6+4/9÷6/5
=5/9×回9/5+5/9×18
=5/9×5/6+4/9×5/6
=1+10
=(答5/9+4/9)×5/6
=11=1×5/6
=5/6
13/14-15/28÷5/8
4÷4/5-4/5÷4
=13/14-15/28×8/5
=4×5/4-4/5×1/4
=13/14-3/7×2
=5+1/5
=13/14-6/7
=26/5
=1/14
(5/6-3/4)÷3/8
7/11÷[2/5-(1-7/10)}
=(5/6-3/4)×8/3
=7/11÷[2/5-3/10]
=5/6×8/3-3/4×8/3
=7/11÷1/10
=20/9-2
=70/11
=2/9
5樓:懷貝嶽香巧
題:5/9x(9/5+18)
5/9x5/6+4/9÷
zhi6/5
=dao5/9×回9/5+答5/9×18
=5/9×5/6+4/9×5/6
=1+10
=(5/9+4/9)×5/6
=11=1×5/6
=5/6
13/14-15/28÷5/8
4÷4/5-4/5÷4
=13/14-15/28×8/5
=4×5/4-4/5×1/4
=13/14-3/7×2
=5+1/5
=13/14-6/7
=26/5
=1/14
(5/6-3/4)÷3/8
7/11÷[2/5-(1-7/10)}
=(5/6-3/4)×8/3
=7/11÷[2/5-3/10]
=5/6×8/3-3/4×8/3
=7/11÷1/10
=20/9-2
=70/11
=2/9
小學六年級上冊數學題 分數四則混合運算【用簡便的方法做】
6樓:叫啥知不道
(bai1)24x(11/12-7/8)
=24*11/12-24*7/8
=22-21
=1(2)du6-(3/7÷zhi3/14+6/13)=6-(3/7*14/3+6/13)
=6-(2+6/13)
=6-2-6/13
=3又dao7/13
(3)1-5/8÷25/8-3/10
=1-5/8*8/25-3/10
=1-1/5-3/10
=1-(2/10+3/10)
=1-1/2
=1/2
7樓:暝夜之心
=24×11/12-24×7/8=22-21=1 =6-(2+6/13)=3又7/13 =1-(1/5+3/10)=1/2
8樓:夏_沫悲傷
(1)24*11/12-24*7/8=22-21=1
(2)6-2-6/13=4-6/13=46/13
(3)1-1/5-3/10=1-(2/10+3/10)=1-1/2=1/2
9樓:prince毛絨兔兔
(1)24x11/12-24x7/8=2x11+3x7=43
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