Answer:

7/18

Step by step explanation:

8/9 - 2/4

• First, reduce the fraction (2/4). Divide it into two. 2/4 will be 1/2 because 2÷2 = 1 and 4÷2 = 2.
• Second, multiply the numbers and use butterfly method. (8/9 and 2/4). So 8×2 = 16, 9×1 = 9 and then 9×2 = 18.
• Third, subtract the numbers 16 and 9, it will be 7 and we will not change this denominator (18) it will remain that way.

Given:

Solution:

We must find the LCD since they are dissimilar fractions: LCD is 36, then

8 = 4*8 = 32

9 36 36

- -

2 = 9*2 = 18

4 36 36

14 or 7 (simplified)

36 18

Hence, it is 7/18...