Question

Completati spatiile punctate si simplificati rezultatele:
a) -9 supra 5 · (-75 supra 27)=......
b) 17 supra 3 · 12 supra 34 · (-9 supra 2)=...........
c) -3 supra 8 : 16 supra 6=............
d) 12 supra 49 : (-4 supra 96)=...........

Answer 1

$a).- \frac{9}{5} *(- \frac{75}{27} )= \frac{675}{135} =5 \\ \\ b). \frac{17}{3} * \frac{12}{34} *(- \frac{9}{2} )= \frac{204}{102} *(- \frac{9}{2} )=- \frac{1836}{204} = -9 \\ \\ c).- \frac{3}{8} : \frac{16}{6} =- \frac{3}{8} * \frac{6}{16} =- \frac{18}{128} =- \frac{9}{64} \\ \\ d). \frac{12}{49} :(- \frac{4}{96} )= \frac{12}{49} *(- \frac{96}{4} )=- \frac{1152}{196} =- \frac{576}{98}=- \frac{288}{49}$