A class of students has 18 boys and 21 girls. Match each statement to the ratio that can be used to represent it.

6

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7

Step-by-step explanation:

the numbers that can go intl the denominator are 1, 3, 7 the biggest number is 7 and can go into 21 3 times so its divided by 3 . divide the numerator by 3 and you get 6 over 7

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0