Addition Problem :
Addition Problem 4 3
5 2 Check
Your
Sign!
Find the LCD (Lowest Common Denominator) :
Find the LCD (Lowest Common Denominator) 4 3
5 2 Hint: The LCD of two fractions is the least common multiple of their denominators.
Find the Lowest Common Denominator :
Find the Lowest Common Denominator 2 5
3 5 15 4 3
5 3 15 LCD
Write an Equivalent Fraction :
Write an Equivalent Fraction 2 5 10
3 5 15 4 3 12
5 3 15
Add the Numerators :
Add the Numerators 12 10
15 15 15 22
Write as a mixed number :
Write as a mixed number 22 7
15 15 1 Addition Problem Solved!
Subtraction Problem :
Subtraction Problem 7 2
5 5 Reminder: Be sure to find the Lowest Common denominator and write an equivalent fraction. Check
Your
Sign!
Subtract the Numerators :
8 2
5 5 5 Subtract the Numerators 6
Write as a mixed number :
Write as a mixed number 6 1
5 5 1 Subtraction Problem Solved!