During the early years of World War II, the United States

the United States declared war on japan because Japan was responsible for the bombing of pearl harbor after that they became fully engaged in World War 2 unlike World War 1.

Explanation:

hope this helped.

the fraction 18/22 is equivalent to 9/11.

in decimal form if needed

this is a proper fraction once the absolute value of the top number or numerator (18) is smaller than the absolute value of the bottom number or denomintor (22).

the fraction 18/22 is equal to 18÷22 and can also be expressed in decimal form as 0.818182.