If you have four quarters, three dimes, two nickels, and two pennies, what fraction of the whole coin collection is in dimes?

4 quarters = $1.00

3 dimes = $.30

2 nickels = $.10

2 pennies = $.02

Total = $1.42

Then you take the amount of dimes ($.30) and divide it by the total ($1.42)

Therefore your fraction is 30/142 or simplified 15/71.