Final answer:
To write 1.1 as a mixed number, it can be expressed as 1 and 1/10.
Step-by-step explanation:
To write 1.1 as a mixed number, we need to convert the decimal to a fraction. Since there is only one digit after the decimal point, we can write it as a fraction with 1 in the numerator and a power of 10 in the denominator. In this case, the denominator is 10. So, 1.1 can be written as 11/10.
To express this fraction as a mixed number, we divide the numerator (11) by the denominator (10) and write the quotient as the whole number part of the mixed number. The remainder becomes the numerator of the fraction, and the denominator remains the same. In this case, 11 divided by 10 equals 1 with a remainder of 1. Therefore, 1.1 can be written as the mixed number 1 and 1/10.