Monday, June 20, 2011

how to subtract mixed numbers?

4* 1/4 - 2* 2/3 = now i need to change it to improper fraction.

17/4 - 7/3= change IT to LCM.

51/12- 28/12= 22/ 12 NOW THAT I HAVE THE ANSWER CHANGE IT TO MIXED AGAIN.

22/12= 1* 10/12

multiply mixed numbers

3*1/5 x  2* 1/3 = when you have the mixed numbers you change it to improper fractions:

16/5 x 7/3 = 112/ 15

ADD MIXED NUMBERS

EXPLAIN HOW TO ADD MIXED NUNMBERS!!

1.    1* 2/5 + 2* 2/3 = When you have the mixed numbers you need to change it to improper: you need to multiply the big number and the denominator and then add to the denominator.

2. 7/5 + 8/3= now that you have the improper fractions you need to have the LCM!

21/15+40/15= 61/15 nd then that you have the answer you change it again to mixed number 61/15= 4*1/5

triangles inequality

give me 3 examples of  triangles inequality and 3 examples of 3 non triangles inequality!

YES:

1: 2,3,4
2: 7,8,9
3: 9,10,11


NON:

1:  7,1,1
2:  7,2,1
3: 8,3,1

solving problems

Camila has 9- 2/3 cups of sugar, she put to the juice 6- 1/4 cups of sugar. How many cups of sugar are left?


9  2/3 - 6  1/4 = 29/3-25/4=  116/12 - 75/12= 41/12 = 3* 5/12