What is an expression so that the product of a whole number and a decimal is 0.28

Question

asked Dec 13, 2019 223k views

1 Answer

Jim Jimson · Answer 1 · 2019-12-17T20:58:59+0000

You may go the super easy way and choose 1 as the whole number and 0.28 as the decimal number. Then you'd obviously have
$1\cdot 0.28=0.28$

Otherwise, to be a bit more creative, you can observe that

$0.28=(28)/(100) = (14)/(50) = (7)/(25) = 7\cdot (1)/(25)$

And since 1/25=0.04, you can also choose 7 as the integer, and 0.04 as the decimal to get

$7\cdot 0.04=0.28$