Question

СрочнаСрочнаСрочнаСрочна​

Answer 1

a)

$\dfrac{1}{4}\cdot60 + \dfrac{1}{8}\cdot72 = \dfrac{60}{4} + \dfrac{72}{8} = 15 + 9 = 24$

б)

$\dfrac{7}{8}\cdot96 - \dfrac{3}{4}\cdot84 = 7\cdot\dfrac{96}{8} - 3\cdot\dfrac{84}{4} = 7\cdot12 - 3\cdot21 = 84 - 63 = 21$