4/7 - 2/8 = whats the difference

9/28

Step-by-step explanation:

Multiply the denominators by each other to make them the same. Multiply each numerator by the same number as it’s corresponding denominator. Subtract as usual and simplify

c.

step-by-step explanation:

because first you have to add the 4x, 9x, and the 7x together and you get 20x and then you add the last numbers up and you get 5and then you put the subtraction sign in there and that's how you get the answer.