One third of a number is a 66 2/3% decrease of a number. true or false, explain.
True, because:
66 2/3% of a number is the same as 2/3 of it, so
A 66 2/3% decrease of the number (say, x) would be:
1x - (2/3 * x)
Which would equal:
1/3x
Therefore, one third of a number is a 66 2/3% decrease of a number.
+14 
