to change any decimal to a fraction, we simply <u>use as many zeros on the denominator as there are decimals and lose the dot</u>.
1.18 has two decimals, so we'll use two zeros at the bottom, and lose the dot.

I don't understand the question
I think it would be 64/100 because 64 percent is most likely out of 100 percent
Was increased by 1 inch, the new measure of each side would be 4 inches.