How do I find unit rate with fractions?

label Mathematics
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reads 21 3/4 pages in 2/5 of an hour. Find unit rate in pages per hour

Aug 21st, 2014

Number of pages = 21 3/4 = (21*4+3)/4 =87/4 pages

time =2/5 hours

Reading rate per hour = 87/4 divided by 2/5 = 87/4*5/2 = 87*5/8 =435/8 = 54 3/8

54.375 pages per hour is the rate

or 54 3/8 pages per hour

Aug 21st, 2014

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