fraction subtraction simple subtraction not to much different from addition. 1) get a common...
Post on 26-Dec-2015
226 Views
Preview:
TRANSCRIPT
FractionFraction
Subtraction
SimpleSimpleSubtraction
Subtraction• Not to much different from addition.
1) Get a common Denominator
2) Subtract
Mr. Turtle
8
1
8
6
4
38
7
8
7
Try one• ¾ - 2/5
Try one• 3 2/3 – 1 3/8
SubtractionSubtractionWith borrowing
Subtraction• Try 4 2/5 – 2 4/5
What is different about this problem?
Mr. Turtle
Subtraction• Try 4 2/5 – 2 4/5
You have to borrow.
Mr. Turtle
5
42
5
24
Subtraction• More examples
1) Get LCD
2) Borrow only when necessary
3) subtract
Mr. Turtle
6
52
4
37
11
456
Try one• 3 2/3 – 1 7/8
Try another• 15 1/8 – 7 3/4
Subtraction• Two more examples
It helps to remember how things work with whole numbers while learning fractions.
These are like 30 – 7 and 83 - 40
Mr. Turtle
3
78
115
46
ElementsElements
www.animationfactory.com
top related