Respuesta :

jiangjacky1234ozqz8r

Answer:

B

Step-by-step explanation:

subtract 4 from 9 to get 5 and then since both fractions have 12 on bottom, you can subtract 3 form 7 to get 4

since 4*3 is 12, you can factor 12 to become 3 and 4 becomes 1

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