Question

Mark simplified 3/5 + 5/8 his work is shown below. Identify where he made his error.

Step 1: 3/5 * 8/5

Step 2: 3 * 8 / 5 * 5

Step 3: 24/5

Step 4: 4 4/5

Answer 1

Step 1

Explanation:

Mark simplified 3/5 + 5/8 using the steps below:

Step 1: 3/5 * 8/5

Step 2: 3 * 8 / 5 * 5

Step 3: 24/5

Step 4: 4 4/5

Mark's error is in Step 1 where he changed the addition sign to multiplication sign.

The correct solution is:

`Step 1: (3)/(5)+ (5)/(8)\\Step 2: (24+25)/(40)\\Step 3: (49)/(40)\\Step 4: 1(9)/(40)`