Question

сократите дробь:
1)
$\frac{3x}{21y}$
2)
$\frac{5x {}^{2} }{6x}$
3)
$\frac{5c {}^{4} }{10c {}^{5} }$
4)
$\frac{2m {}^{4} }{m {}^{3} }$
5)
$\frac{16ab { }^{4} }{40ab {}^{2} }$
6)
$\frac{63x {}^{5}y {}^{4} }{42 {x}^{2} {y}^{5} }$
7)
$\frac{12 {a}^{8} }{ - 42 {a}^{2} }$
8)
$\frac{ - 13 {a}^{5} {b}^{5} }{26 {a}^{4} {b}^{3} }$

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Answer 1

Ответ:

1) х/7у

2) 5х/6m

3) 2c

4) 2m

5) 2b²/5

6) 9x³/6y