Dividing a 2-digit number by 3 1/2

1. Select a 2-digit number.
2. Multiply the number by 2.
3. Divide the product by 7.

   Example:

1. The 2-digit number chosen to divide by 3 1/2 is 42.
2. Multiply by 2: 2 x 42 = 84
3. Divide by 7: 84/7 = 12
4. So 42 divided by 3 1/2 = 12.

   See the pattern?

1. The 2-digit number chosen to divide by 3 1/2 is 61.
2. Multiply by 2: 2 x 61 = 122
3. Divide by 7: 122/7 = 17 3/7
4. So 61 divided by 3 1/2 = 17 3/7.

If the number chosen is divisible by 7, the answer will be a whole number. For numbers not divisible by 7, a calculator will get a repeating decimal, but your fractional answer will be exact.