Question

4,5:(47,375-26 1/3-18·0,75)·24:0,88:17,81:1,37-23 2/3:1 5/6

Answer 1

$1)(26 frac{1}{3} -18cdot 0,75)=(26 frac{1}{3} -13,5)= (26 frac{1}{3} -13 frac{1}{2} )= (26 frac{2}{6} -13 frac{3}{6} )= \ \ =(25frac{8}{6} -13 frac{3}{6} )= 12frac{5}{6} \ \ 2)12frac{5}{6} cdot 24=frac{77}{6} cdot 24=77cdot4=308 \ \ 3)308:0,88=350 \ \ 4)47,375-350=-302,625 \ \ 5)4,5:(-302,625)=- frac{4500}{302625}=- frac{4}{269}$

6)17,81:1,37=13

7)23 2/3:1 5/6=71/3:11/6=(71/3)·(6/11)=(71·2)/11=142/11

8)13-142/11=(143/11)-(142/11)=1/11

$9)-frac{4}{269} : frac{1}{11}= -frac{4}{269} cdot 11=-frac{44}{269}$