Search the web to find definitions and examples of fractions. How is a fraction defined?
What keywords will you search for?
fraction definition
fraction example
equivalent fraction
fraction simplest form
improper/proper fraction
complex fraction compound fraction
comparing fractions
Examples:

https://www.mathsisfun.com/definitions/fraction.html
check the square!
https://www.splashmath.com/math-vocabulary/fractions/equivalent-fractions
check rectangles!
kahn academy
wikipedia
http://www.mathwords.com/i/improper_fraction.htm
http://www.mathwords.com/c/compound_fraction.htm
http://www.math.com/school/subject1/lessons/S1U4L1GL.html
http://www.math.com/school/subject1/lessons/S1U4L1DP.html
http://www.math.com/school/subject1/practice/S1U4L1/S1U4L1Pract.html
https://printableworksheets.in/?dq=Fraction%20Definition
https://printableworksheets.in/worksheet/3rd-grade-fraction-strips