Question

Прошу ,помогите решить 7,8,9

Answer 1

$7.\;180:\frac23=180\cdot\frac32=90\cdot3=270\\\\8.\;99:\frac34=99\cdot\frac43=33\cdot4=132\\\\9.\;36:\left(\frac43-1\right)=36:\frac13=36\cdot3=108$