When you divide with fractions you use the following rule: dividing by a number is the same as multiplying by its reciprocal. After applying this rule you have a multiplication of fractions problem.

multiplication: (a/b) x (c/d) = ac/bd (don't forget to simplify or simplify before you multiply)

division: (a/b)/(c/d)=(a/b) x (d/c) = ad/bc (don't forget to simplify or simplify before you multiply)

(3/4) x (5/7) = (3*5)/(4*7) = 15/28

(4/9) x (15/16) = (4*15)/(9*16) = 60/144 = 5/12 or,

(4/9) x (15/16) = (1/3) x (5/4) = 5/12

In the above example divide 4 and 16 both by 4 and divide 9 and 15 both by 3.

(4/5)/(6/7) = (4/5) x (7/6) = 28/30 = 14/15

(8/15)/(12/25) = (8/15) x (25/12) = 200/180 = 10/9 = 1 and 1/9

(8/15)/(12/25) = (8/15) x (25/12) = (2/3) x (5/3) = 10/9 = 1 and 1/9

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