Whole Number Division

Prepare a Presentation

Work Time

Prepare a Presentation

  • Explain how you solved each problem and why your answer makes sense.
  • Explain Jan’s and Carlos’s methods.

Challenge Problem

Denzel uses the following shortcut to divide a whole number by a fraction:

“To divide a whole number by a fraction, I multiply the whole number by the denominator of the fraction, and then divide this product by the numerator of the fraction.”

  • Show that Denzel’s method works for the problems from today’s lesson: 3÷14, 2÷35, and 3÷23.
  • Why does Denzel’s shortcut work? Explain the mathematics of his method.