Scribe Post for Wednesday, November 18th/2009

Hello class, I'm sorry for the late scribe post, but I have a good reason for that! My sister was on it because she needed it for her university courses :) There you go. Well, time to get back on topic! Yesterday in class we went over the subtraction questions that were for homework. Then after that we went on to learning how to multiplying fractions. It's the most easiest thing to learn if I do say so myself :)

1/3 x 1/2 = 1/6

(1/3 groups of 1/2)

1/2 x 1/4 = 1/8

(0.5 x 0.25 = 0.125)

2 x 3 = 6

Multiplying proper fractions is relatively easy, unlike adding or subtracting fractions, where we NEVER add or subtract the denominator, we DO multiply both the numerator and denominator. a/b x c/d= ac/bd. Simplify if possible.

When multiplying mixed numbers, first change each mixed number into and improper fraction, then multiply. Simplify if possible.

ex. 3 1/2 x 4 1/5 = 7/2 x 21/5

     = 147/10

     = 14 7/10

These were 8 of the 10 math questions that were for homework:

1. 2/3 x 5/8 = 10/24

     = 5/12

2. -2 1/3 x 1/5 = -7/3 x 1/5

 = -6/15

3. -(-1 1/8) x (-2 1/4) = 9/8 x -9/4

      = -49/24

      = -2 1/24

4. -(1/3) (1/4) (1/5) = (1/12) ( 1/5)

   = 1/60

5. (9/21) (7/8)= 63/168

Sorry 9-05 I can't explain anything else because my sister needs the computer as soon as possible. THANKYOU FOR YOUR TIME AND COMMENT :)