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Firstly we need to realise that since we are dividing two negative numbers, the result must be a positive number.
Let's rewrite the exercise in the form of a simple fraction:
Remember the rule:
Any number we divide by 1 will be equal to itself, therefore:
Convert \( \frac{7}{2} \)into its reciprocal form:
Think of division as repeated subtraction. When you divide -94.7 by -1, you're asking "how many groups of -1 fit into -94.7?" Since both numbers point in the same direction (negative), the result is positive!
Use this simple rule: same signs = positive, different signs = negative. So (-) ÷ (-) = (+) and (+) ÷ (-) = (-).
Dividing by -1 is like asking "what number times -1 gives me my original number?" For -94.7, that number is 94.7 because 94.7 × (-1) = -94.7.
Use multiplication to check division! Multiply your answer by the divisor: 94.7 × (-1) = -94.7. This matches our original dividend, so we're correct!
Absolutely! The sign rules work exactly the same whether you're dividing decimals, fractions, or whole numbers. For example: (-8) ÷ (-2) = +4.
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