Difficulty: Easy
Correct Answer: 1.28
Explanation:
Introduction / Context:
Before multiplying decimals, look for common factors you can pull out. This problem is designed for factoring: both the numerator terms have a common 0.896 and the denominator terms have a common 0.7. Recognizing this pattern turns a messy quotient into a simple ratio.
Given Data / Assumptions:
Concept / Approach:
Use distributive factoring a×x + a×y = a(x + y). In both numerator and denominator, the bracketed sums equal 1. This observation reduces the whole fraction to the ratio of the common factors 0.896 to 0.7, which is quick to compute.
Step-by-Step Solution:
Verification / Alternative check:
Why Other Options Are Wrong:
Common Pitfalls:
Final Answer:
Discussion & Comments