Math Problem Statement
Let's calculate the total amount of time in hours.
Problem:
Ana has to complete a task that requires 2 1/2 hours of work. She needs to spread it out over 5 days. How many hours will she work each day?
Mathematical Representation:
Let's break it down step by step:
- Convert the mixed number to an improper fraction:
- 2 1/2 = (2 x 2) + 1/2 = 5/2
- Multiply the total time by the number of days:
- (5/2) hours × 5 days = ?
Division of Fractions:
To divide the total time by the number of days, we can use the following formula:
a/b ÷ c/d = ad / bc
In our case, a = 5, b = 2, c = 1, and d = 5.
So, we can calculate the division as follows:
(5/2) ÷ (1/5) = (5 x 5) / (2 x 1) = 25 / 2
Simplifying the Fraction:
To simplify the fraction, we can divide both the numerator and the denominator by their greatest common divisor (GCD), which is 1.
25 ÷ 1 = 25 2 ÷ 1 = 2
So, the simplified answer is:
25 / 2 = 12.5
Answer:
Ana will work approximately 12.5 hours each day for 5 days to complete the task.
I hope this example helps you understand how to divide fractions in a real-world scenario!
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Math Problem Analysis
Mathematical Concepts
Fractions
Division
Mixed Numbers
Formulas
a/b ÷ c/d = ad / bc
Theorems
Reciprocal Multiplication Theorem
Suitable Grade Level
Grades 5-6