Any terminating decimal can be converted to a fraction using place value (e.g. 0.35 is thirty-five hundredths or 35/100). A fraction whose denominator includes only factors of 2 and 5 can be converted to a decimal by writing the denominator as a power of ten.
Remember: Terminating decimals will always have a denominator that is the product of 2's and/or 5's.
The link below is a 7th grade IXL target that will reinforce the lesson learned on converting decimals, fractions, and mixed numbers.
http://www.ixl.com/math/grade-7/convert-between-decimals-and-fractions-or-mixed-numbers
Below is a printable version of the common core's 7th grade lesson 13 - converting between fractions and decimals using equivalent fractions.
Below is a printable version of the common core's 7th grade lesson 14 - converting rational numbers to decimals using long division.
