Answer
Estimate: 24 - 18 = 6
Exact: $5\frac{5}{8}$
Work Step by Step
$24-18\frac{3}{8}$
Lets first Find Estimate of fraction:
$18\frac{3}{8}$=18
$24-18\frac{3}{8}$ = 24 - 18 = 6
Now find Exact:
$24-18\frac{3}{8}$
= $24-\frac{18\times8+3}{8}$
= $24-\frac{147}{8}$
= $\frac{24\times8}{1\times8}-\frac{147}{8}$ (Least common multiple of 1 & 8 is 8)
= $\frac{196}{8}-\frac{147}{8}$
= $\frac{192-147}{8}$ (Subtraction of fraction with same denominator)
= $\frac{45}{8}$
= $5\frac{5}{8}$
