Question

помогите пожалуйста!!!!

Answer 1

$a) frac{1.2*3.3}{4.4} = frac{1.2*33}{44} =1.2*3:4=0.9. \\ b) frac{19.8*(-5.6)}{6.3} =- frac{198*5.6}{63} =- frac{22*9*5.6}{7*9} =- frac{22*56}{70} =-22*8:10=-17.6.\\c)9.1:7+2 frac{5}{6} =1.3+ frac{17}{6} = frac{7.8}{6}+ frac{17}{6} = frac{248}{60} = frac{62}{15}=4 frac{2}{15} .\\d)(1.08- frac{2}{25} ): frac{5}{9} =(108/100 - 8/100):5/9=1:5/9= frac{9}{5} .$