Changing 25/4 fraction into a mixed fraction

Acollection of coins has value of 64 cents. there are two more nickels than dimes and three times as many pennies as dimes in this collection. how many of each kind of coin are in the collection?

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers

The areas of two similar triangles are 72dm2 and 50dm2. the sum of their perimeters is 226dm. what is the perimeter of each of these triangles?