SUBTRACTING FRACTIONS WITH LIKE DENOMINATORS
Whenever you subtract fractions with like denominators, you subtract the numerators to create the answer numerator, use the same denominator as the answer denominator.
DON'T FORGET TO REDUCE YOUR ANSWER TO LOWEST TERM!
5/6 - 1/6 = 4/6 or 2/3
Show with picture or model.
3/4 - 1/4 = 2/4 or 1/2
1/3 - 1/3 = 0/3 or 0
a.) 7/10 - 3/10 = 4/10 or 2/5
b.)1 - 1/9 = 8/9
You know how I got 8/9? Simple, we already know that when subtracting fractions, the denominator has to be the same so in this case, 9 is the denominator and if both numerator and denominator are the same it's equal to one. So it would be like this : 9/9 - 1/9 = 8/9.
http://www.youtube.com/watch?v=BX7J4JE5IYw
http://www.youtube.com/watch?v=0pl_up6knbI
http://www.youtube.com/watch?v=9uxUwSORuSg
DO PAGE 220 - 221 #1 - 14 odd then even.
