Question

if 5/4 :7/2 =p:q and q: r = 9/2 : 21/4 find p: r
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Answer 1

Answer:

5:21

Step-by-step explanation:

5/4 *7/2=p/q

10*28= p/q

q/r=9/2*21/4

=36*42

p /q =q/r. (cancel q and q)

p/r =10/42( cancel by 2)

=5/21

p:r = 5:21