Question

Johnetta simplified seven over nine ÷ three over eight; her work is shown below. Identify where she made her error. (5 points) Original division problem: seven over nine ÷ three over eight Step 1: seven over nine multiplied by three over eight Step 2: seven times three over nine times eight Step 3: twenty-one over seventy-two Step 4: seven over twenty-four

Answer 1

STEP 1

Explanation:

Answer 2

She made an error in step 1.

To change a division of fractions to a multiplication problem, you multiply by the reciprocal of one of the numbers (use the KFC rule of Keep, Flip, Change). Keep 7/9, flip the sign (division to multiplication), and change 3/8.

What Johnetta should have done is 7/9 times 8/3, which would be 56/27.