Question

Several batches of stew were made yesterday. Each batch required 1 and two-thirds pounds of meat. All together, 10 and StartFraction 5 over 6 EndFraction pounds of meat was used. Janice tried to find the number of batches of stew made. Her work is shown below.

Answer 1

Step 2

1 2/3 was converted as 5/2 instead of 5/3

Explanation:

Each batch = 1 2/3

Total = 10 5/6

Number of batches

10 5/6 : 1 2/3 =

65/6 : 5/3 =

65/6 * 3/5 =

65/10 =

6.5

Solution by Janice:

10 5/6 : 1 2/3 =

65/6 : 5/2 =

65/6 * 2/5 =

130/30 =

4 1/3

Error made at step 2:

StartFraction 65 over 6 EndFraction divided by five halves = StartFraction 65 over 6 EndFraction times StartFraction 2 over 5

1 2/3 was converted as 5/2 instead of 5/3