## Basic College Mathematics (9th Edition)

estimated = 2*4= 8 exact= 7$\frac{17}{18}$
1$\frac{5}{6}$ * 4$\frac{1}{3}$ Estimate the answer by rounding the mixed numbers 1$\frac{5}{6}$ round to 2 and 4$\frac{1}{3}$ round to 4 2 * 4 = 8 To find the exact answer, change each mixed number to an improper fraction. 1$\frac{5}{6}$ = $\frac{11}{6}$ 4$\frac{1}{3}$ = $\frac{13}{3}$ Now multiply, $\frac{11}{6}$ * $\frac{13}{3}$= $\frac{143}{18}$ = 7$\frac{17}{18}$ The exact answer is 7$\frac{17}{18}$ The exact answer is reasonable