1/4: 0,25-1/8 :0,125+1/2:0,5-1/10
1/4:0,25-1/8:0,125+1/2:0,5-1/10
=1/4:1/4-1/8:1/8+1/2:1/2-1/10
=1-1+1-1/10
=1-1/10
=9/10
`1/4:0,25-1/8:0,125+1/2:0,5-1/10`
`=1/4 : 1/4 - 1/8 : 1/8 + 1/2 :1/2 - 1/10 `
`=1/4 . 4/1 - 1/8 . 8/1 + 1/2 . 2/1 - 1/10`
` = 1 - 1 + 1 - 1/10 `
`= 1 - 1/10 `
`= 10/10 - 1/10 `
`=9/10`
1/4:0,25-1/8:0,125+1/2:0,5-1/10
\(\dfrac{1}{4}:0,25-\dfrac{1}{8}:0,125+\dfrac{1}{2}:0,5-\dfrac{1}{10}\\ =\dfrac{1}{4}:\dfrac{1}{4}-\dfrac{1}{8}:\dfrac{1}{8}+\dfrac{1}{2}:\dfrac{1}{2}-\dfrac{1}{10}\\ =1-1+1-\dfrac{1}{10}\\ =\left(1-1\right)+\left(1-\dfrac{1}{10}\right)\\ =1-\dfrac{1}{10}\\ =\dfrac{10-1}{10}=\dfrac{9}{10}\)
1/2 :0,5 + 1/4 : 0,25 - 1/10 :0,1 + 1/8 : 0,125
\(\dfrac{1}{2}:0,5+\dfrac{1}{4}:0,25-\dfrac{1}{10}:0,1+\dfrac{1}{8}:0,125\)
\(=\dfrac{1}{2}.2+\dfrac{1}{4}.4+\dfrac{1}{10}.10+\dfrac{1}{8}.8\)
\(=1+1+1+1=4\)
1/4:0,25-1/8:0,125+1/2:0,5-1/10:0,1
1/4:0,25-1/8:0,125+1/2:0,5-1/10:0,1
=1/4x4-1/8x8+1/2x2-1/10x10
=4/4-8/8+2/2-10/10
=1-1+1-1
=0
1/2 : 0,5 - 1/4 : 0,25 + 1/8 : 0,125 - 1/10 : 0,1
1/2 : 0,5 - 1/4 : 0,25 +1/8 :0,125 - 1/10 : 0.1
1/2;0,5-1/4:0,25+1/8:0,125-1/10:0,1
=1-1+1-1
=0+0
=0
nhớ k cho mik vs bạn nhé
mình ko hiểu lắm bạn có thể viết đầy đủ được ko
1/2÷0,5-1/4÷0,25+1/8:0,125-1/10:0,1
1/2÷0,5-1/4÷0,25+1/8:0,125-1/10:0,1=0
1/2 ÷ 0,5 - 1/4 ÷ 0,25 + 1/8 : 0,125 - 1/10 : 0,1 = 0
# Chúc em học tốt
1/2:0,5-1/4:0,25-1/8:0,125-1/10:0,1
tính nhanh \(\frac{1}{2}:0,5-\frac{1}{4}:0,25-\frac{1}{8}:0,125-\frac{1}{10}:0,1\)
1/2:0,5-1/4:0,25+1/8:0,125-1/10:0,1
=143 NHA BN
cac bn ung ho minh nha