Write the following sentences as equations.
`1//3` of a is b.

Answer

To convert the sentence "1/3 of a is b" into an equation, we can follow these steps:

1. **Identify the components of the sentence**:
- The phrase "1/3 of a" indicates a fraction of the variable 'a'.
- The phrase "is b" indicates that the expression is equal to 'b'.

2. **Translate "1/3 of a" into mathematical terms**:
- "1/3 of a" can be expressed as (1/3) * a or (1/3)a.

3. **Set up the equation**:
- Since "1/3 of a is b", we can write this as:
\[ \frac{1}{3} a = b \]

4. **Final equation**:
- Thus, the final equation representing the sentence is:
\[ \frac{1}{3} a = b \]