Answer :

Sure, let's simplify the fraction [tex]\(\frac{45}{91}\)[/tex] to its lowest terms step by step.

### Step 1: Identify the Greatest Common Divisor (GCD)
To simplify a fraction, we need to find the greatest common divisor (GCD) of the numerator and the denominator. The GCD of two numbers is the largest number that divides both of them without leaving a remainder.

For the fraction [tex]\(\frac{45}{91}\)[/tex], the GCD of the numbers 45 and 91 is 1.

### Step 2: Divide the Numerator and Denominator by the GCD
Once we have the GCD, we divide both the numerator and the denominator by this GCD to simplify the fraction.

- The numerator 45 divided by the GCD 1 is:
[tex]\[ \frac{45}{1} = 45 \][/tex]

- The denominator 91 divided by the GCD 1 is:
[tex]\[ \frac{91}{1} = 91 \][/tex]

### Step 3: Write the Simplified Fraction
After dividing both the numerator and the denominator by their GCD, we get the simplified fraction:
[tex]\[ \frac{45}{91} \][/tex]

Since the GCD was 1, the fraction [tex]\(\frac{45}{91}\)[/tex] is already in its simplest form. Therefore, [tex]\(\frac{45}{91}\)[/tex] cannot be simplified further.

### Conclusion
The fraction [tex]\(\frac{45}{91}\)[/tex] is already in its lowest terms and does not need any further simplification.

So, the simplified form of [tex]\(\frac{45}{91}\)[/tex] is [tex]\(\frac{45}{91}\)[/tex].