Answer:
[tex]3\dfrac{3}{4}[/tex] hours
Step-by-step explanation:
Kelly babysits [tex]=5 \dfrac{5}{6}[/tex] hours on the weekend.
This is [tex]2 \dfrac{1}{12}[/tex] hours more than she babysits during the week.
To find how many hours she babysits during the week, simply subtract:
[tex]5\dfrac{5}{6}-2\dfrac{1}{12}\\ \\=3\dfrac{5}{6}-\dfrac{1}{12}\ [\text{Subtract the whole parts}]\\ \\=3\dfrac{10}{12}-\dfrac{1}{12}\ \[\text{Convert first fraction to have the denominator of 12}]\\ \\=3\dfrac{9}{12}\ \ [\text{Subtract fractions with the same denominateors subtracting their numerators}]\\ \\=3\dfrac{3}{4}\ \ [\text{Simplify fraction dividing the numerator and the denominator by 3}][/tex]