Question 866278
We always write $ before the amount. NEVER after.

2 coins are quarters 
2*$.25=$.50
$.90-$.50=$.40
$.40/$.10=4
There are four dimes
What fractions of the coins are quarters?
2/6=1/3 of the coins are quarters.
Answer:1/3

The new tutor answered a different question.
50/90 =5/9 is the fraction of the value of the coins.