Using the digit 9 and 1. Write a fraction less than 1/10

Bobpursley and I have both shown you how to do this. Now it's your turn.

We'll be glad to check your work.

1/91

That's good.

To write a fraction less than 1/10 using the digits 9 and 1, we can use the digit 1 as the numerator and the digit 9 followed by a zero as the denominator. This will give us the fraction 1/90.

Explanation:
In this case, we use the digit 1 as the numerator because it is less than 9 or any combination of 9. Then, we use the digit 9 as the denominator followed by a zero to indicate a division by ten. This results in a fraction where the numerator is 1, and the denominator is 90, which is less than 10. Therefore, the fraction 1/90 is a fraction less than 1/10 using the digits 9 and 1.