- 30.9
3.9
_____
27.0
for one the answer is 27 not 2.7
You put the whole number on top of 1, it doesnt change its value. then you simplify across like in a butterfly only if needed then you multiply across from left to right.
it would be the third one, 2/3
There are two eights per quarter, and four quarters per whole, so there would be 14 eights in one and three quarters
6.5x10^7
count the decimal places over, with the first being zero
