Respuesta :
'of' means multiply
9/10 times 50=
9/10 times 50/1=
(9 times 50)/(10 times 1)=
450/10=
45/1=
45
answer is 45
9/10 times 50=
9/10 times 50/1=
(9 times 50)/(10 times 1)=
450/10=
45/1=
45
answer is 45