What is the opposite of 1/2??

A) 2

B) -

2

1

C) -

1

2

D) A fraction does not have an opposite.

Rename mixed numbers before you can subtract are what

Some boys and girls were asked if they had a pet. one third of the group were boys. there were 20 boys. 20% of the girls had a pet. boys with a pet : girls with a pet = 1 : 5 i need to know how many girls there are.

2.5 milligrams is equivalent to how many grams