Fill in the blank
If two terms of a ratio have no common factor (except1), ten the ratio is said to be in …. Or in…..

Answer

To solve the question, we need to understand what it means for a ratio to have no common factors other than 1. This indicates that the two numbers in the ratio are relatively prime or coprime.

### Step-by-Step Solution:

1. **Understanding the Ratio**: A ratio compares two quantities. For example, the ratio of 2 to 3 can be written as 2:3 or 2/3.

2. **Identifying Common Factors**: When we say that two terms of a ratio have no common factor except 1, it means that the greatest common divisor (GCD) of the two numbers is 1.

3. **Examples of Ratios**:
- Consider the ratio 2:3. The factors of 2 are 1, 2, and the factors of 3 are 1, 3. The only common factor is 1.
- Another example is the ratio 5:6. The factors of 5 are 1, 5 and the factors of 6 are 1, 2, 3, 6. Again, the only common factor is 1.

4. **Defining the Terms**: When a ratio has no common factors (other than 1), it is considered to be in its simplest form or lowest form.

5. **Filling in the Blanks**: Therefore, the correct terms to fill in the blanks are "simplest" and "lowest form".

### Final Answer:
If two terms of a ratio have no common factor (except 1), then the ratio is said to be in **simplest** or in **lowest form**.

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