Question

Đã trả lời bởi chuyên gia

Answer 1

`a) x+1/6=4/7`

`x=4/7-1/6`

`x=17/42`

`b) 7/5xx x=4/7`

`x=4/7:7/5`

`x=20/49`

`c) y:2/3=7/9`

`y=7/9xx2/3`

`y=14/27`

`d) 3/5:y=3`

`y=3/5:3`

`y=1/5`

Answer 2

a)

$x + \frac{1}{6} = \frac{4}{7} x = \frac{4}{7} - \frac{1}{6} x = \frac{24}{42} - \frac{7}{42} x = \frac{17}{42}$

Vậy : $x = \frac{17}{42}$

b)

$\frac{7}{5} \times x = \frac{4}{7} x = \frac{4}{7} \div \frac{7}{5} x = \frac{4}{7} \times \frac{5}{7} x = \frac{20}{49} V ậ y x = \frac{20}{49}$

c)

$y \div \frac{2}{3} = \frac{7}{9} y = \frac{7}{9} \times \frac{2}{3} y = \frac{14}{27} V ậ y y = \frac{14}{27}$

d)

$\frac{3}{5} \div y = 3 y = \frac{3}{5} \div 3 y = \frac{3}{5} \times \frac{1}{3} y = \frac{1}{5} V ậ y y = \frac{1}{5}$

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Answer 3

a)

$x + \frac{1}{6} = \frac{4}{7} x = \frac{4}{7} - \frac{1}{6} x = \frac{24}{42} - \frac{7}{42} x = \frac{17}{42}$

Vậy : $x = \frac{17}{42}$

b)

$\frac{7}{5} \times x = \frac{4}{7} x = \frac{4}{7} \div \frac{7}{5} x = \frac{4}{7} \times \frac{5}{7} x = \frac{20}{49} V ậ y x = \frac{20}{49}$

c)

$y \div \frac{2}{3} = \frac{7}{9} y = \frac{7}{9} \times \frac{2}{3} y = \frac{14}{27} V ậ y y = \frac{14}{27}$

d)

$\frac{3}{5} \div y = 3 y = \frac{3}{5} \div 3 y = \frac{3}{5} \times \frac{1}{3} y = \frac{1}{5} V ậ y y = \frac{1}{5}$

Answer 4

Đề đây ạ

Answer 5

$a . x + \frac{1}{6} = \frac{4}{7} x = \frac{4}{7} - \frac{1}{6} x = \frac{17}{24} b . \frac{7}{5} x = \frac{4}{7} x = \frac{4}{7} : \frac{7}{5} x = \frac{20}{49} c . y : \frac{2}{3} = \frac{7}{9} y = \frac{7}{9} . \frac{2}{3} y = \frac{14}{27} d . \frac{3}{5} : y = 3 y = \frac{3}{5} : 3 y = \frac{1}{5}$

gửi bạn :3 @akii

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Answer 6

$a . x + \frac{1}{6} = \frac{4}{7} x = \frac{4}{7} - \frac{1}{6} x = \frac{17}{24} b . \frac{7}{5} x = \frac{4}{7} x = \frac{4}{7} : \frac{7}{5} x = \frac{20}{49} c . y : \frac{2}{3} = \frac{7}{9} y = \frac{7}{9} . \frac{2}{3} y = \frac{14}{27} d . \frac{3}{5} : y = 3 y = \frac{3}{5} : 3 y = \frac{1}{5}$

gửi bạn :3 @akii

Answer 7

đáp án đây vốt 5sao nha Hỏi đáp VietJack

Answer 8

`a)` `x+1/6=4/7`

`x=4/7-1/6`

`x=17/32`

`b)` `7/5timesx=4/7`

`x=4/7:7/5`

`x=20/49`

`c)` `y:2/3=7/9`

`x=7/9times2/3`

`x=14/27`

`d)` `3/5:y=3`

`y=3/5:3`

`x=1/5`

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