Warmup: Order the three numbers from LEAST to GREATEST -0.5, , 7/10, 1/3

Homework Answers 1.) varies 12.) > 3.) Varies 13.) = 4.) .8 14.) -2/3,-3/5,-7/8 5.) .75 15.) 7/10,6/8,4/5 6.) .333…. 17.) < 7.) .625 19.) < 8.) .777… 21.) > 9.) -3,-2.6,0,1/4,1.5 23.) > 10.> 25.) < 11. < 27.) >

3.2 Adding and Subtracting Rational Numbers

Why would we need to be able to add fractions?

1 ) You get paid time and a half for overtime _____________   2) The mortgage rate is 4.25 % 3) The size of the roll of material was

What are the parts of a fraction? Top number= Bottom number= Bar is a symbol for _________

How do we add fractions? 1.) Find a common denominator if necessary 2.) add together tops ONLY: bottom stays the same 3.) Reduce your fraction if possible

a.) 2/3 + 5/3= b.) 2/6+9/12 c.) 4/5 + 1/2

Ex. A cookie recipe calls for 5/6 cups of sugar Ex. A cookie recipe calls for 5/6 cups of sugar. All you have is a ½ measuring cup and a 1/3 measuring cup. Can you make it work? How?

Mixed numbers are different…

Subtracting Fractions

Hwk: p. 102-103: 3-9, 11-25, 36

Clothesline Activity