1樓:樂為人師
(5/6+3/4-1/2)÷1/24
=(5/6+3/4-1/2)×24
=5/6×24+3/4×24-1/2×24=20+18-12
=2616/11-(1/3÷11/15+1/5)=16/11-(5/11+1/5)
=16/11-5/11-1/5
=1-1/5
=4/5
怎樣計算簡便怎樣算 (5/6-3/4+1/3)÷1/24 8/21÷16/7÷26×13/9
2樓:匿名使用者
給我採納 我給你答案
3樓:匿名使用者
(5/6-3/4+1/3)÷1/24
=20-18+8=10
數學1.計算題,能簡便的要簡便計算。1/3÷5/6÷16/15 【1-(1/5+1/6)】÷1/12 ( 5/6-3/4)÷(1/4-1/8)
4樓:牢廷謙籍念
1、計算題:
解:1/3÷5/6÷16/15
=1/3×6/5×15/16=3/8
[1-(1/5+1/6)]÷1/12 =[1-11/30]×12=19/30×12=38/5
(5/6-3/4)÷(1/4-1/8)=1/12÷1/8=1/12×8=2/3
應用題:
解:30÷5/6×8/9=36×8/9=32(千克)答:丙筐梨的質量是32千克.
遞等式計算題5/6-3/4+1/3 11/12-(1/6-1/8) 7/12-(3/4-1/2) 1/2-(3/4-3/8)
5樓:妙酒
您好:5/6-3/4+1/3
=10/12-9/12+4/12
=5/12
11/12-(1/6-1/8)
=22/24-4/24+3/24
=21/24
=7/8
7/12-(3/4-1/2)
=7/12-1/4
=1/3
1/2-(3/4-3/8)
=1/2-3/8
=1/8
如果本題有什麼不明白可以追問,如果滿意記得採納如果有其他問題請採納本題後另發點選向我求助,答題不易,請諒解,謝謝。
祝學習進步!
6樓:匿名使用者
5/6-3/4+1/3(通分)
=10/12-9/12+4/12
=1/12+4/12
=5/12
11/12-(1/6-1/8)
=11/12-1/6+1/8(通分)
=22/24-4/24+3/24
=18/24+3/24
=21/24(約分)
=7/8
7/12-(3/4-1/2)
=7/12-3/4+1/2(通分)
=7/12-9/12+6/12
=13/12-9/12
=4/12
=1/3
1/2-(3/4-3/8)
=1/2-3/4+3/8
=8/16-12/16+6/16
=14/16-12/16
=2/16
=1/8
7樓:匿名使用者
5/6-
3/4+1/3
=10/12-9/12+4/12
=(10-9+4)/12
=5/12
11/12-(1/6-1/8)
=11/12-2/12+1/8
=9/12+1/8
=3/4+1/8
=6/8+1/8
=7/8
7/12-(3/4-1/2)
=7/12-(3/4-2/4)
=7/12-1/4
=7/12-3/12
=4/12
=1/3
1/2-(3/4-3/8)
=1/2-(6/8-3/8)
=1/2-3/8
=4/8-3/8
=1/8
8樓:府玉蘭迮丙
1、計算題:
解:1/3÷5/6÷16/15
=1/3×6/5×15/16=3/8
[1-(1/5+1/6)]÷1/12 =[1-11/30]×12=19/30×12=38/5
(5/6-3/4)÷(1/4-1/8)=1/12÷1/8=1/12×8=2/3
應用題:
解:30÷5/6×8/9=36×8/9=32(千克)答:丙筐梨的質量是32千克.
能簡便計算的要簡便計算4/9÷[5/6-(1/6+1/3)] 1/15*(1/3+1/12) 1/4÷(3-5/13-8/13)
9樓:匿名使用者
4/9÷[5/6-(1/6+1/3)]
=4/9÷[5/6- 3/6]
=4/9×3
=4/3
1/15*(1/3+1/12)
=1/15*5/12
=1/36
1/4÷(3-5/13-8/13)
=1/4÷(3-1)
=1/8
望採納。謝謝
10樓:匿名使用者
1、4/9÷[5/6-(
1/6+1/3)]=4/9÷[5/6-1/6-1/3)]=4/9÷[2/3-1/3]=4/9÷1/3=4/3
2、1/15*(1/3+1/12)=1/15*(4/12+1/12)=1/15*5/12=1/36
3、1/4÷(3-5/13-8/13)=1/4÷[3-(5/13+8/13)]=1/4÷[3-1]=1/4÷2=1/8
用簡便方法計算:5/6-4/9+1/6-2/9=? 13/15-7/112/15+6/11=? 7/15-1/4+8/15-3/4=?
11樓:超電炮姐
5/6-4/9+1/6-2/9
=5/6+1/6-4/9-2/9
=1-6/9
=3/9
=1/3
13/15-7/112/15+6/11
這個題你輸錯了吧
應該是 13/15-7/11+2/15+6/11=13/15+2/15-7/11+6/11=1-1/11
=10/11
7/15-1/4+8/15-3/4
=7/15+8/15-1/4-3/4
=1-1
=4/12
=1/3
0.7+11/15-3/10+4/15
=7/10-3/10+11/15+4/15=4/10+1
=1.4
12樓:李佳宇大王
簡便計算:
5/6-4/9+1/6-2/9
=(5/6+1/6)-(4/9+2/9)
=1-2/3
=1/3
13/15-7/11+2/15+6/11
=(13/15+2/15)-(7/11-6/11)=1-1/11
=10/11
7/15-1/4+8/15-3/4
=(7/15+8/15)-(1/4+3/4)=1-1
=011/12-1/18+5/12-17/18=(11/12+5/12)-(1/18+17/18)=4/3-1
=1/3
0.7+11/15-3/10+4/15
=7/10+11/15-3/10+4/15=(7/10-3/10)+(11/15+4/15)=2/5+1
=1又2/5
(望採納,謝謝)
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