Answer:
To obtain 11/8 from 1 1/4, you would need to multiply 1 1/4 by 8/8, or by 1.
Explanation:
This is because when multiplying fractions, you multiply the numerators (the top numbers) and multiply the denominators (the bottom numbers) to obtain the final result. So, in this case, the calculation would be:
(1 1/4) * (8/8) = (1 * 8) + (1/4 * 8) = 8 + 2 = 10 + 1/2 = 10 1/2 = 11/2
Therefore, to obtain 11/8 from 1 1/4, you would need to multiply 1 1/4 by 8/8, or by 1.