What is 1 3 x 1 1 4?

To multiply 1 3 by 1 1 4, you first convert the mixed numbers to improper fractions: 1 3 is equivalent to 4/3, and 1 1 4 is equivalent to 5/4. Then, you multiply the numerators (4 * 5 = 20) and the denominators (3 * 4 = 12) to get the product 20/12. Finally, you simplify the fraction by dividing both the numerator and denominator by their greatest common factor, which is 4, resulting in the simplified fraction 5/3.