Solve Division Problem: (+3) ÷ (-0.05) with Signed Numbers

$(+3):(-0.05)=\text{ ?}$

Firstly we need to realise that since we are dividing two negative numbers, the result must be a positive number.

$+:-=-$

Next, let's convert 0.05 into a simple fraction:

$-0.05=-\frac{5}{100}$

We are left with:

$-(3:\frac{5}{100})=$

Then let's convert the division into multiplication, remembering to switch the numerator and denominator:

$-(3\times\frac{100}{5})=$

Finally we can continue solving to find the answer:

$-(3\times20)=-60$