Multiplying Fractions

Directions: Using the digits 1 to 9, at most one time each, place a digit in each box to make the smallest (or largest) possible product.

Hint

How can we tell whether it would be better to put the larger/smaller numbers in the numerator or denominator?

Answer

Smallest: 1/9 * 2/8 or largest: 9/1 * 8/2

Source: Robert Kaplinsky

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Directions: Using the digits 1 to 9, at most one time each, place a digit …

One comment

  1. the smallest product is 1/31 and the greatest product is 36

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