Question

Kyle is making a dessert that calls for 5/4 cup of crushed cookies. If he has already crushed 7/10 cup, how much more does he need?

Answer 1

`(11)/(20)`

Explanation:

20 is a like factor for the denominators so we can convert the fractions

`(5*5)/(4*5) =(25)/(20) \\\\(7*2)/(10*2) =(14)/(20)`

Now we can subtract by subtracting the numerators but keeping the denominators the same

`(25)/(20) -(14)/(20) =(11)/(20)`

Hope this helps lmk if you have questions