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9 answers
To solve the expression \(-12 - (-6)\), we can simplify it step by step.
The expression involves subtracting a negative number, which is the same as adding its positive counterpart: \[ -12 - (-6) = -12 + 6 \]
Now, we can perform the addition: \[ -12 + 6 = -6 \]
Thus, the value of \(-12 - (-6)\) is \(\boxed{-6}\).
To calculate \(-18.1 + 5\), you can follow these steps:
Calculating the addition:
\[ -18.1 + 5 = -18.1 + 5.0 = -13.1 \]
Thus, the value of \(-18.1 + 5\) is \(\boxed{-13.1}\).
To compute \(-189.987 - 30.87\), you simply add the two negative numbers together:
\[ -189.987 - 30.87 = -189.987 + (-30.87) \]
Now, you add the absolute values:
\[ 189.987 + 30.87 = 220.857 \]
Therefore, adding the negatives gives:
\[ -189.987 - 30.87 = -220.857 \]
Thus, the value of \(-189.987 - 30.87\) is \(\boxed{-220.857}\).
To add the fractions \(-\frac{1}{4}\) and \(-\frac{3}{5}\), we first need a common denominator. The least common multiple of 4 and 5 is 20.
Now we convert each fraction to have a denominator of 20:
Convert \(-\frac{1}{4}\): \[ -\frac{1}{4} = -\frac{1 \times 5}{4 \times 5} = -\frac{5}{20} \]
Convert \(-\frac{3}{5}\): \[ -\frac{3}{5} = -\frac{3 \times 4}{5 \times 4} = -\frac{12}{20} \]
Now we can add the two fractions: \[ -\frac{5}{20} + -\frac{12}{20} = -\frac{5 + 12}{20} = -\frac{17}{20} \]
Therefore, the value of \(-\frac{1}{4} + -\frac{3}{5}\) is \(\boxed{-\frac{17}{20}}\).
No, the correct answer is \(-\frac{17}{20}\).
To clarify:
When adding \(-\frac{1}{4}\) and \(-\frac{3}{5}\), we found that:
\[ -\frac{1}{4} + -\frac{3}{5} = -\frac{17}{20} \]
So, the final answer is \(-\frac{17}{20}\), not \(\frac{17}{20}\). Thank you for your inquiry!
