Question

Emily said that 12 divided by 2/5 can be solved by doing 12 times 5 then divide by 2. Sarah said it can be solved by doing 12 times 2 and then dividing by 5. Sam said it can be solved by doing 12 times 5 then times 1/2. Who is correct?why?prove it.

Answer 1

Emily and Sam are correct

Explanation:

12 ÷ 2/5

12 × 5/2

60/2

30

Emily is correct

12 ÷ 2/5

12 × 5/2

60/2

½(60)

30

Sam is correct

Answer 2

see below

Explanation:

12 ÷ (2/5)

Copy dot lip

12 * 5/2 = 60/2 = 30

12 * 5 * 1/2 = 60 * 1/2 = 30

Emily and Sam are correct

Sarah:

12*2 =24/5 = 4.8 which is not 30