Question

Beth had 1/3 hour to get ready for work.She spent 1/5 hour putting on makeup.How much time does Beth have left?Give your answer in simplest form.1 hourEnter

Answer 1

To find how much time Beth has left, substract the time she spends on make up to the time she had to get ready.

This means that you have to substract 1/5 hour, which is the time she spends in make up, to 1/3 hour which is the time she has to get ready. This is: 1/3-1/5.

Imagine that you spent certain time on doing any activity, then you have to substract that time you spent from the time you had to do all your activities and duties. That is exactly what happened with Beth, she had 1/3 hour, but she spent 1/5 on make up, she needs to substract that 1/5 hour spent to the total time she had to know how much time she has left.

This will be a substraction of not similar fractions, you solve it this way:

`\begin{gathered} (1)/(3)-(1)/(5) \\ =(1\cdot5-1\cdot3)/(3\cdot5) \\ =(5-3)/(15) \\ =(2)/(15) \end{gathered}`

Now, she has 2/15 hours left.