发布网友 发布时间:2023-11-06 20:21
共1个回答
热心网友 时间:2024-11-10 20:55
7/12÷(虚纯碧7/12+1/3)
=7/12÷(7/12+4/12)
=7/12÷11/12
=7/11
,
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(7/12+4/9)x0.36
=7/12x0.36+4/9x0.36
=7x0.03+4x0.04
=0.21+0.16
=0.37
=45*(7/9)-45*0.6
=35-27
=8
4又7/9-(5/9+4/7)
=4又7/9-5/9-4/7
=4又2/9-4/7
=3又41/63
-----------------------------------------------------------------------------------------
20-(差举7.8+0.875÷7/8)
=20-(7.8+0.875×8/7)
=20-(7.8+1)
=20-8.8
=11.2
7/8-括号7/8-1/7回括用简便方法计算
7/8-括号7/8-1/7回括
=7/8-(7/8-1/7)
=7/8-7/8+1/7
=1/7
7/6-(7/10-1/3)
=7/6+1/3-7/10
=3/2-7/10
=4/5
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48×括号7/8 2/3-1/4括起来用简便计算
48×括号7/8 2/3-1/4括起来
=48*7/8+48*2/3-48*1/4
=42+32-12
=62
7/24×(48+12/7)
=7/24*48+7/24*12/7
=7*2+1/2
=14+0.5
=14.5
24×括号7/12+2括号÷(2/3)简便算法
24×括号7/12+2括号÷(2/3)
=24*7/12+24*2*3/2
=14+72
=86
7/12÷(虚纯碧7/12+1/3)
=7/12÷(7/12+4/12)
=7/12÷11/12
=7/11
,
你好,本题已解答,如果满意
请点右下角“采纳答案”。
(7/12+4/9)x0.36
=7/12x0.36+4/9x0.36
=7x0.03+4x0.04
=0.21+0.16
=0.37
=45*(7/9)-45*0.6
=35-27
=8
4又7/9-(5/9+4/7)
=4又7/9-5/9-4/7
=4又2/9-4/7
=3又41/63
-----------------------------------------------------------------------------------------
20-(差举7.8+0.875÷7/8)
=20-(7.8+0.875×8/7)
=20-(7.8+1)
=20-8.8
=11.2
7/8-括号7/8-1/7回括用简便方法计算
7/8-括号7/8-1/7回括
=7/8-(7/8-1/7)
=7/8-7/8+1/7
=1/7
7/6-(7/10-1/3)
=7/6+1/3-7/10
=3/2-7/10
=4/5
-----------------------------------------------------------------------------------------
48×括号7/8 2/3-1/4括起来用简便计算
48×括号7/8 2/3-1/4括起来
=48*7/8+48*2/3-48*1/4
=42+32-12
=62
7/24×(48+12/7)
=7/24*48+7/24*12/7
=7*2+1/2
=14+0.5
=14.5
24×括号7/12+2括号÷(2/3)简便算法
24×括号7/12+2括号÷(2/3)
=24*7/12+24*2*3/2
=14+72
=86
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