Question

Rewrite each division problem as a multiplication problem and solve. 6.3 divided 0.9 equals what

Answer 1

You can write both numbers as fractions:

`6.3=(63)/(10),\quad 0.9=(9)/(10)`

Dividing by a fraction is the same as multiplying by its inverse, so we have

`(63)/(10)/ (9)/(10)=(63)/(10)\cdot(10)/(9)`

We can cross-simplify the 10's and we have

`(63)/(10)\cdot(10)/(9)=(63)/(9)=7`