Answer:
If you are talking about common factors, the common factors of 15 are 15, 5, 3, and 1. The common factors of 45 are 45, 9, 5, 3, and 1. Common factors are numbers that a number can be divided by. Like 35 / 5, 5 is a common factor of 35.
Step-by-step explanation:
You know you have to divide, but you can't decide which way.
Use your units. The answer will be (money) per (can of soup), so
you know you have to divide the money by the number of cans.
(If you divided (cans of soup) by (money) then the answer you get
would be (cans) per (dollar). That's not what you need.)
(2.50) / (4 cans)
= (2.50/4) per can
= 0.625 per can .
She used 3.36 pints of white paint. if you were to convert the fraction to 60% then you would just have to find 40% of 8.4 and thats 3.36.