Add and Subtract Positive and Negative Fractions and Mixed Numbers SWBAT add and subtract positive and negative fractions; add and subtract positive and.

Presentation on theme: "Add and Subtract Positive and Negative Fractions and Mixed Numbers SWBAT add and subtract positive and negative fractions; add and subtract positive and."— Presentation transcript:

Add and Subtract Positive and Negative Fractions and Mixed Numbers SWBAT add and subtract positive and negative fractions; add and subtract positive and negative mixed numbers

Adding and Subtracting Fractions When adding fractions you need to have common denominator. What is the LCD for 4/5 and 7/8?

Examples -5/16 + (-5/8) 3/5 + (-4/15) 7/10 – 4/5 -2/10 – 11/20 1 3/10 – (-2/5) -2 7/12 + (-3 5/8) 1 3/5 + (-6 7/10) -3 5/6 – (-1 ¾)

Try These -3/8 + (-5/16) -6/16 + -5/16 -6/16 + -5/16 -11/16 -11/16 3/5 + (-4/15) 9/15 + (-4/15) 9/15 + (-4/15) 5/15 = 1/3 5/15 = 1/3 26 ¼ - (-5 3/8) 26 2/8 + 5 3/8 26 2/8 + 5 3/8 31 5/8 31 5/8

Download ppt "Add and Subtract Positive and Negative Fractions and Mixed Numbers SWBAT add and subtract positive and negative fractions; add and subtract positive and."

Similar presentations