Final answer:
To divide (2/1/4) by 9, you need to multiply the fraction by the reciprocal of 9.
Step-by-step explanation:
To divide a fraction by a whole number, you need to multiply the fraction by the reciprocal of the whole number. In this case, the reciprocal of 9 is 1/9. So, we have (2/1/4) ÷ 9 = (2/1/4) x 1/9. To multiply fractions, multiply the numerators together and the denominators together. So, we have 2 x 1 = 2 and 4 x 9 = 36. Therefore, (2/1/4) ÷ 9 = 2/36, which can be simplified to 1/18.
Learn more about Dividing fractions by whole numbers