0.6 divided by 0.12 =

We carry out the addition as follows

\(5\frac{1}{3}+3+\frac{1}{2}=5+3+\frac{1}{3}+\frac{1}{2}\)

Least common divisor of 3 and 2 is 6, we add fractions as follows

\(5+3+\frac{1}{3}+\frac{1}{2}=8+\frac{2+3}{6}=8\frac{5}{6}\)

First determine the number of classes in a population of 6734 students

\(6734\ students\ast\frac{1 class}{25 students}\ =\ 269.36 classes\)

There are about 269 classes and if we assume 1 class to be taught by 1 teacher, then the number of teachers to be hired is:

Number of teachers to be hired = 269 - 217 = 52 teachers

0.004 as a fraction is

\(\frac{4}{1000}=\frac{1}{250}\)

In ratio form \(\frac{1}{250}\) = 1:250

Thus 0.004 as a ratio is 1:250.

First convert 2 5/8 into an improper fraction as follows

\(2\frac{5}{8}=\frac{\left(2\ast8\right)+5}{8}=\frac{16+5}{8}=\frac{21}{8}\)

Now carry out subtraction

\(\frac{21}{8}-\frac{7}{8}=\frac{14}{8}=\frac{7}{4}=1\frac{3}{4}\)