1楼:匿名用户
(2/3-1/4)÷3/8+8/9
=(8/12-3/12)x8/3+8/9
=5/12x8/3+8/9
=10/9+8/9
=18/9=2
2楼:匿名用户
(2/3-1/4)÷3/8+8/9
=(8/12-3/12)÷3/8+8/9
=5/12*8/3+8/9
=10/9+8/9=18/9=2
括号2/3-1/4÷(3/8)+8/9
3楼:新野旁观者
脱式计算
(2/3-1/4)÷3/8+8/9
=5/12÷3/8+8/9
=10/9+8/9=2
2/3÷8/9×(1-3/4) 怎样简算
4楼:繁人凡人
=2/3÷8/9×(1/4)
=2/3×9/8×(1/4)
=3/16
脱式计算 (2-2/3)×2/9÷4 9/16÷(3/8+1/16)
5楼:瀛洲烟雨
(2-2/3)×2/9÷4
=4/3×1/4×2/9
=1/3×2/9
=2/27
6楼:丹凝心孝芙
你的题目好象少了项9×(6×8)啊
呵呵,如果是这样的话,原式=(2×3)(1+4+9+16)/(2×3)(1+4+9+16)(2×4)=1/8
(3/8-1/4)÷(8/9×3/4)
7楼:匿名用户
(3/8-1/4)÷(8/9×3/4)
=5/8÷24/36
=5/8×3/2
=15/16
真希望能帮到你!满意请采纳!
(5/8-1/4)÷(8/9+1/3)?
8楼:匿名用户
①( 5/8 - 1/4 ) ÷ ( 8/9 + 1/3 )= ( 5/8 - 2/8 ) ÷ ( 8/9 + 3/9 )= 3/8 ÷ 11/9
= 3/8 ×
9/11
= 27/88
② 3/8 + 3/4 × 2/3 ÷ 6= 3/8 + 12/12 ÷ 6
= 3/8 + 6/12
= 3/8 + 1/2
= 3/8 + 4/8
= 7/8
③ (1/4 + 1/5)×4×5
= (1/4 + 1/5)× 20
= 1/4 × 20 + 1/5 × 20= 5 + 4
= 9④ 3/5 +(1 - 7/10)÷ 3/20= 3/5 + 3/10 × 20/3
= 3/5 + 60/30
= 3/5 + 2
= 3/5 + 10/5
= 13/5
⑤ 4.5x + 0.2x = 6.1
4.7 x = 6.1
x = 6.1 / 4.7
x = 61/47
⑥ 3/4x - 1/3 = 5/6
(3/4) x = 5/6 + 2/6
(3/4) x = 7/6
x = 7/6 ÷ 3/4
x = 7/6 × 4/3
x = 28/18
x = 14/9
计算要过程:-3/4÷3/8×(-4/9)÷(-2/3);63×(-1又4/9)+(1/7)÷(-0.9)。
9楼:新野旁观者
-3/4÷3/8×(-4/9)÷(-2/3)=-2×(-4/9)×(-3/2)
=8/9×(-3/2)
=-4/3
63×(-1又4/9)+(1/7)÷(-0.9)=63×(-13/9)+1/7÷(-9/10)=-91-10/63
=-91又10/63
10楼:小桥柳树人家
1.原式=-3/4×8/3×(-4/9)×(-3/2)=-4/3
2.原式=63×(-13/9)+(1/7)×(-10/9)=-91-10/63
=-91又10/63
假分数是 -5743/63
2/3-(5/6-3/4)÷3/8简算
11楼:橙那个青
本题只能先通分算括号内的
楼上解答了
不再重复过程
12楼:匿名用户
2/3-(5/6-3/4)÷3/8
=2/3-(5/6 x 8/3)-(3/4 x 8/3)=2/3-20/9+2
=2/3-2又2/9+2
=2/3-2/9
=4/9
13楼:匿名用户
2+2+2=6
3×3-3=6
4 !÷
√ 4 ÷√ 4=24÷2÷2=6(4!=1×2×3×4=24,√4=2)
5÷5+5=6
6×6÷6=6
7-7÷7=6
√8+√8+√8=6 (√8=2)√9×√9-√9=6.
简便 1/3÷(3/8+3/4×1/2) (2/3+2/9)÷10/11
14楼:新野旁观者
1/3÷(3/8+3/4×1/2)
=1/3÷(3/8+3/8)
=1/3÷3/4
=4/9
(2/3+2/9)÷10/11
=(1/3+1/9)×11/5
=4/9×11/5
=44/45
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