Question

.
Только 38.1 и 38.2

Answer 1

38.1

1)

$\frac{12xa}{15ya} = \frac{4x}{5y}$

2)

$\frac{12c {b}^{2} }{9b {c}^{3} } = \frac{4b}{3 {c}^{2} }$

3)

$\frac{12a {y}^{3} }{ - 8 {a}^{2} y} = - \frac{3 {y}^{2} }{2a}$

4)

$\frac{ - 6 {p}^{3}q }{ - 12 {q}^{3} } = \frac{ {p}^{3} }{2 {q}^{2} }$

5)

$\frac{ - 4a {x}^{2} }{12xy} = - \frac{ax}{3y}$

6)

$\frac{9ax {y}^{2} }{6a {y}^{3} } = \frac{3x}{2y}$

7)

$\frac{48 { a}^{2} {c}^{2} }{36ac} = \frac{4ac}{3}$

8)

$\frac{63 {x}^{3} {y}^{5} }{84 {x}^{6} {y}^{4} } = \frac{3y}{4 {x}^{3} }$

38.2

1)

$\frac{18bc}{24c} = \frac{3b}{4}$

2)

$\frac{25 {a}^{2} y}{15by} = \frac{5 {a}^{2} }{3b}$

3)

$\frac{24 {a}^{3} }{6ac} = \frac{4 {a}^{2} }{c}$

4)

$\frac{27 {x}^{2} y}{21x {y}^{3} } = \frac{9x}{7 {y}^{2} }$

5)

$\frac{ - 2 {a}^{6} {b}^{3} }{ {a}^{3} {b}^{5} } = - \frac{2 {a}^{3} }{ {b}^{2} }$

6)

$\frac{ {x}^{7} {y}^{4} }{ {x}^{5} {y}^{8} } = \frac{ {x}^{2} }{ {y}^{4} }$

7)

$\frac{42 {m}^{3} {n}^{5} }{35m {n}^{5} } = \frac{6 {m}^{2} }{5}$

8)

$\frac{75 {p}^{4}q }{150 {p}^{5} q} = \frac{1}{2p}$