Question

Estimate the difference
6 5/12 - 4 1/9 =
A. 2
B. 3
C. 1
D. 4

Answer 1

Estimate the difference6 5/12 - 4 1/9 =?

6 5/12 (as you know 5/12 is less than 1/2) = 6
4 1/9 = 4
6-4 = 2

Answer is A. 2

Answer 2

`(83)/(36)=2.30=2`

Explanation:

`6(5)/(12) -4(1)/(9)`

`(77)/(12) -(37)/(9)`

Now make the denominator same and then subtract the fractions

LCD of 12 and 9 is 36

multiply 12 by 3 and 9 by 4 to get 36

`(77 \cdot 3)/(12 \cdot 3) -(37 \cdot 4)/(9 \cdot 4)`

`(231)/(36) -(148)/(36)`

`(83)/(36)=2.30`