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`# \text {04th5}`
`a)`
\(7 \dfrac{3}{5} \div x = 5 \dfrac{4}{15} - 1 \dfrac{1}{6}\)
\(\Rightarrow 7 \dfrac{3}{5} \div x = \dfrac{41}{10}\)
\(\Rightarrow x = 7\dfrac{3}{5} \div \dfrac{41}{10}\)
\(\Rightarrow x = \dfrac{76}{41}\)
Vậy, $x = \dfrac{76}{41}$
`b)`
$x \times 2 \dfrac{2}{3} = 3 \dfrac{4}{8} + 6 \dfrac{5}{12}$
$\Rightarrow x \times \dfrac{2}{3} = \dfrac{119}{12}$
$\Rightarrow x = \dfrac{119}{12} \div \dfrac{2}{3}$
$\Rightarrow x = \dfrac{119}{8}$
Vậy, $x = \dfrac{119}{8}.$
![](https://rs.olm.vn/images/avt/0.png?1311)
3.75 : \(\dfrac{1}{4}\) + 3.75 : 0.5 + 3,75 + \(\dfrac{1}{8}\) + 3,75 x 86
= 3,75 : \(\left(\dfrac{1}{4}+0.5+\dfrac{1}{8}\right)\) + 3,75 x 86
= 3,75 : \(\dfrac{7}{8}\) + 322.5
= 4,3 + 322.5 = 326,8
tích hộ chị nha
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12,5 : 0,25 + 12,5 x 6
= 12,5 x 4 + 12,5 x 6
= 12,5 x ( 4+6 )
= 12,5 x 10 = 12512,5 : 0,25 + 12,5 x 6
= 12,5 x 4 + 12,5 x 6
= 12,5 x (4 + 6)
= 12,5 x 10
= 125
#Toán lớp 5
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0,35 × 135 - 35% × 35
= 0,35 × 135 - 0,35 × 35
= 0,35 × (135 - 35)
= 0,35 × 100
= 35
\(0,35\times135-35\%\times35\)
\(=0,35\times135-0,35\times35\)
\(=0,35\times\left(135-35\right)\)
\(=0,35\times100\)
\(=35\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(0,35x135-35\%x35=0,35x\left(100+35\right)-0,35x35=0,35x100+0,35x35-0,35x35=35\)
![](https://rs.olm.vn/images/avt/0.png?1311)
Y:3,75=15
Y=56,25
y : 3,75 = 13,25 + 1,75
y : 3,75 = 15
y = 56,25