Hey there! I'm happy to help!
If we want to turn this into a decimal, we only need to find what the fraction is as a decimal because we already know the whole number
QUESTION 1
We know that our decimal is 4 point something. We know that this something is 1/5. To turn a fraction into a decimal, you just divide the numerator by the denominator.
1÷5=0.2
We add the whole number and fraction.
4+0.2=4.2.
QUESTION 2
14÷15=0.933333 repeating
We add this to the whole number.
12.93333333 repeating.
QUESTION 3
5÷32=0.15625
We add this to the whole number.
5.15625
Have a wonderful day! :D