To simplify the expression \( (1.1 - 0.3) / 8 + 4 \times 3 \), we will follow the order of operations (PEMDAS/BODMAS):
- Parentheses/Brackets
- Exponents/Orders
- Multiplication and Division (from left to right)
- Addition and Subtraction (from left to right)
Now, let's solve the expression step by step:
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Calculate inside the parentheses: \[ 1.1 - 0.3 = 0.8 \]
Now, the expression becomes: \[ 0.8 / 8 + 4 \times 3 \]
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Perform the division: \[ 0.8 / 8 = 0.1 \]
Now, the expression is: \[ 0.1 + 4 \times 3 \]
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Perform the multiplication: \[ 4 \times 3 = 12 \]
Now, the expression simplifies to: \[ 0.1 + 12 \]
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Perform the addition: \[ 0.1 + 12 = 12.1 \]
Thus, the simplified expression is \(\boxed{12.1}\).