Aspect ratio

Determine the length ratio to the width of a picture frame that is 12 3/4 inches long and 8 1/2 inches wide.

Correct answer:

r =  3/2 = 3:2

Step-by-step explanation:

a=1243=12+43=412 4+3=448+3=451=1243=12.75 in b=821=8+21=28 2+1=216+1=217=821=8.5 in  r=a/b=451/217=451:217=451 172=4 1751 2=68102=23=121=1.5=3:2

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