Question

Скоротіть дріб



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Answer 1

$1)$

$\frac{a - b}{2(b - a)} = \frac{a - b}{ - 2(a - b)} = - \frac{1}{2} = - 0.5$

$2)$

$\frac{3x - 6y}{4y - 2x} = \frac{3(x - 2y)}{ - 2(x - 2y)} = \frac{ - 3}{2} = - 1.5$

$3)$

$\frac{ {m}^{2} - 5mn }{15n - 3m} = \frac{m(m - 5n)}{ - 3(m - 5n)} = - \frac{m}{3}$

$4)$

$\frac{ {7a}^{4} - {a}^{3} b }{b {}^{4} - 7ab {}^{3} } = \frac{ {a}^{3}(7a - b) }{ - {b}^{3}(7a - b) } = - \frac{ {a}^{3} }{ {b}^{3} }$