SOLUTION: a year ago, the daily sales of a newspaper averaged 16 320.Now the average daily sales are 28 560. Express the ratio of present sales to last year's sales in its simplest terms
The ratio of present sales to last year's sales is .
Reducing (canceling) the factor 80*17*3 = 4080 in the numerator and denominator, you get the fraction
equal to , which is the simplest form. ANSWER