Understanding the Expression
To find the value of the expression 1/5 - 3, we need to perform the subtraction operation correctly.
Step-by-Step Calculation
- Convert 3 to a Fraction:
To facilitate the subtraction, we can express the whole number 3 as a fraction. This can be done by writing it as 3/1.
- Finding a Common Denominator:
The denominators of our fractions are 5 and 1. The least common denominator (LCD) for these numbers is 5.
- Rewrite Each Fraction:
- 1/5 remains the same.
- Convert 3/1 to a fraction with a denominator of 5:
3/1 = (3 * 5) / (1 * 5) = 15/5.
- Now Perform the Subtraction:
We can now subtract the two fractions:
1/5 - 15/5 = (1 - 15) / 5 = -14/5.
Final Answer Interpretation
- The result of the subtraction is -14/5, which is equivalent to -2.8 in decimal form.
- The options provided seem to be incorrectly labeled, as none of them match -14/5.
Correcting the Misunderstanding
- The correct answer based on our calculations is -14/5, not option 'B' (125).
- If the question intended to refer to another operation or context, it may require clarification.
Conclusion
Thus, the correct value of 1/5 - 3 is -14/5, and the presented options do not accurately reflect this outcome.