1樓:妖精
1/5÷3+4/5×1/3
=1/5×1/3+4/5×1/3
=1/3×(1/5+4/5)
=1/3×1
=1/3
簡便計算(要過程)1/5-1/5÷3
2樓:匿名使用者
1/5-1/5÷3
=1/5-1/5*1/3
=1/5*(1-1/3)
=1/5*2/3
=2/15
4/15÷內4+3/4×
容4/15
=4/15×1/4+3/4×4/15
=4/15×(1/4+3/4)
=4/15
(1/2+3/4+1/8)×16
=1/2×16+3/4×16+1/8×16=8+12+2
=225/7×7/8-7/8×5/7
=7/8×(5/7-5/7)
=7/8×0
=05/12×1/9×24
=10×1/9
=10/9
1-3/5÷3/5×7/8
=1-3/5×5/3×7/8
=1-7/8
=1/8
3樓:匿名使用者
/5-1/5÷
專3=1/5-1/5*1/3
=1/5*(1-1/3)
=1/5*2/3
=2/15
4/15÷4+3/4×
屬4/15
=4/15×1/4+3/4×4/15
=4/15×(1/4+3/4)
=4/15
(1/2+3/4+1/8)×16
=1/2×16+3/4×16+1/8×16=8+12+2
=225/7×7/8-7/8×5/7
=7/8×(5/7-5/7)
=7/8×0
=05/12×1/9×24
=10×1/9
=10/9
1/3*3/5+1簡便方法計算
4樓:小小芝麻大大夢
1/3*3/5+1=1.2。
1/3*3/5+1簡便方法計算過程如下:
1/3*3/5+1
=1/3*3/5+5/5(這裡把1通分化成5/5)=1/5+5/5(1/3*3/5裡分子上的3和分母上的3進行約分)=6/5(同分母的加法)
=1.2(化成小數的形式)
5樓:匿名使用者
=(1-5/9)*5/7
=4/9*5/7
20/63
=1-5/25*21/7
=1-3/5
=2/5
脫式計算,能簡便要簡便。 3/5×1/5÷3/5 2/7-5/8×2/7 1/4÷2/3+2/3÷
6樓:小百合
脫式計算,能簡便要簡便。
3/5×1/5÷3/5
=3/5÷3/5×1/5
=1/5
2/7-5/8×2/7
=(1-5/8)×2/7
=3/8×2/7
=3/28
1/4÷2/3+2/3÷4
=3/2÷4+2/3÷4
=(3/2+2/3)÷4
=13/6÷4
=13/24
1/3÷1/5+4/5
=5/3+4/5
=37/15
[1-(1/4+3/8)]÷1/4
=(1-5/8)×4
=3/8×4
=3/2
4/9×3/16+5/12
=1/12+5/12
=1/2
3/9-1/3×3/9
=(1-1/3)×1/3
=2/9
解方程1/2x÷1/4=8
1/2x=2
x=41/4x+2/3=3
1/4x=3-2/3
1/4x=7/3
x=28/3
1/3x+1/2x=5
5/6x=5
x=62/5x+1/3×6=4
2/5x=4-2
2/5x=2
x=52/7x=1/2×3/14
2/7x=3/28
x=3/8
4.5x+x=11/17
5.5x=11/17
x=2/17
x-1/12x=22
11/12x=22
x=24
3/4+1/3×4/5-1/5(簡便計算)
7樓:兗礦興隆礦
=3/4+1/5*(4/3-1)
=3/4+1/15
=(45+4)/60
=49/60
8樓:我叫琉璃月
=3/4 1/3×(4-1)÷5
=3/4 1/3×3/5
=3/4 1/5
=19/2
其中的/表示分數
1/3-(4/5-2/3)÷3/5 簡便運算 要詳細一些
9樓:匿名使用者
1/3-(4/5-2/3)÷3/5 簡便運算 要詳細bai一du些=1/3-(4/5-2/3)×(5/3)
=1/3-4/3+10/9
=-1+10/9
=1/9;
如果本題zhi有什麼不明白可以dao追問,如果滿意記回得採納如果有其他問答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
10樓:匿名使用者
1/3-(4/5-2/3)÷3/5
=1/3-(4/5-2/3)*5/3 除法du變乘法zhi 分子分
dao母調換位置
=1/3-4/5*5/3+2/3*5/3 乘法分回配律=1/3-4/3+10/9 計算答=-1+1+1/9 計算
=1/9
11樓:匿名使用者
1/3-(4/5-2/3)÷3/5
=1/3-(4/5-2/3)*5/3
=1/3-4/5*5/3+2/3*5/3
=1/3-4/3+10/9
=-1+1+1/9
=1/9
1÷括號3/4+1/3括號乘以5/8等於多少用簡便方法計算?
12樓:寬寬的河
1/(3/4+1/3)*5/8
=1/(9/12+4/12)*5/8
=1/(13/12)*5/8
=12/13*5/8
=15/26
計算下面各題(能簡便的要用簡便方法計算332 68 4(574 442)12 24 125 114
1 332 68 4,332 17,349 2 574 442 12,132 12,11 3 24 125,3 8 125,3 8 125 3 1000,3000 4 114 48 86 52,114 86 48 52 200 100,300 5 469 5 2,469 5 2 469 10,469...
計算下面各題,能用簡便方法的要用簡便方法計算
1 9.78 2.3 2.3 10.22,9.78 10.22 2.3,20 2.3,46 2 1.5 11 7.83 3.5,16.5 7.83 3.5,8.67 3.5,12.17 3 7.25 31 29.55 1.3,7.25 1.45 1.3,5 1.3,6.5 4 75.6 0.7 8....
48025這題要用簡便方法計算,怎麼算
4.8 0.25 1.2 4 0.25 1.2 1 1.2 4 0.8 x0.25 4x0.25 0.8x0.25 1 0.2 1.2 4.8 0.25用簡便演算法怎麼算 4.8 0.25的簡便演算法是,首先把4.8拆分成1.2 4,因為這樣4和後面的0.25就能夠非常簡便的得出結果為1,所以豎式運...