Open the calculator app on your phone
Switch to scientific mode if needed
Enter the numerator
Tap the division symbol
Enter the denominator
Press equals
Use parentheses if entering a fraction inside a larger expression
If your calculator has a fraction button, tap it and fill in the top and bottom parts
If your calculator does not support fractions directly, use division to represent the fraction
For mixed numbers, enter the whole number plus the fraction as a decimal or as parentheses with division