Question

ajudemmmm pfvrrrrr plisss​

Answer 1

Resposta:

a) $\frac{5}{12} + \frac{2}{3} . \frac{1}{4} = \frac{5}{12} + \frac{2}{12} = \frac{7}{12}$

b) $\frac{6}{20} + (-\frac{2}{5}) . (\frac{3}{4}) = \frac{6}{20} - \frac{6}{20} = 0$

c) $(4,5 - \sqrt{0,81}).(2,6 + 3,4) = 5,4 . 6 = 32,4$

d) $4,5.2^{2} - \sqrt{64} + 0,7 = 4,5.4 - 8 + 0,7 = 18 - 8 + 0,7 = 10,7$