Please show your work. Convert decimals into fractions in simplest form

Write each decimal as a fraction in simplest form., And explain how you got your answer

1, :0.5=
2: 0.7=
3.0.33=
4: 0.875= 5.

Mr Ravenhead's car averages 23.75 mile per gallon. Express this amount as a mixed number in simplest form. Explain how you got answer. ​