Final answer:
Only Option 2: 10/7 is not equal to the rational number 7/4. All other options provided are equivalent to the given rational number after simplification or conversion.
Step-by-step explanation:
The question is asking which of the provided options is not equal to the rational number 7/4. Let's examine each option:
- Option 1: 14/8 is equivalent to 7/4 because if you divide the numerator and the denominator by 2, you will get 7/4.
- Option 2: 10/7 is not equivalent to 7/4 because the ratio of 10 to 7 does not simplify to the ratio of 7 to 4.
- Option 3: 1.75 is equivalent to 7/4 because when you convert 1.75 to a fraction, you get 175/100, which can be simplified to 7/4 by dividing both the numerator and denominator by 25.
- Option 4: 1 3/4 is equivalent to 7/4 because the mixed number 1 3/4 is the same as 1 + 3/4, which equals 4/4 + 3/4, and that simplifies to 7/4.
Therefore, the option that is not equal to the rational number 7/4 is Option 2: 10/7.