Vicky's Scribe Post

On January 11, 2008 Mr. Harbeck gave my class a fraction test. There were 6 questions on the test, and he ask me to do a scribe post on question 3 and 4.



Question # 3 was 5 9/10 - 2 1/10
First I subtract the whole numbers. 3 - 5 = 2.
Then I used common denominator
9/10 x 1 = 9/10, 4/5 x 2 = 8/10
Next I subtract the two common denominator fractions. 9/10 - 8/10 = 1/10
Then I add 1/10 to 2, and i got my answer
2 1/10.






Question # 4 was 5 2/5 - 3 13/20
First I subtract the whole numbers. 3 - 5 = 2.
Then I used common denominator
2/5 x 4 = 8/20, 13/20 x 1 = 13/20
Next I subtract the two common denominator
8/20 - 13/20 = 5/20
After that I simplify 5/20
5/20 ÷ 5 = 1/4
Then I add 1/4 to 2, and i got my answer 2 1/4.