Fractions are a fundamental mathematical concept that play a vital role in our everyday lives, from measuring ingredients for a cake to calculating discounts on our purchases. Two particularly important fractions are 5/8 and 1/28, each holding significance in various fields. This comprehensive guide will delve into the intricacies of these fractions, equipping you with valuable knowledge and practical applications.
5/8 represents five-eighths of a whole. It indicates that a portion of a total amount has been divided into eight equal parts, and five of those parts are considered. As a decimal, 5/8 is approximately equal to 0.625.
1/28 represents one-twenty-eighth of a whole. It signifies that a total amount has been subdivided into twenty-eight equal portions, and just one of those portions is being considered. When converted to a decimal, 1/28 is approximately equal to 0.0357.
5/8:
1/28:
Decimals:
Percentages:
Story 1:
A baker is preparing a cake that requires 2 cups of flour. The recipe calls for 5/8 cup of sugar for every 1 cup of flour. How much sugar does the baker need?
Solution:
The baker needs 5/8 cup of sugar for every 1 cup of flour, so for 2 cups of flour, they will need:
(5/8) x (2 cups) = 1 3/8 cups = 1.375 cups of sugar
Story 2:
A group of 28 students is playing a game where the probability of winning is 1/28. What is the probability that a specific student will win?
Solution:
The probability that a specific student will win is 1/28, which is approximately 3.57%.
Story 3:
A financial institution is offering a savings account with an APY of 1/28. If you deposit $1,000 into the account, how much interest will you earn in one year?
Solution:
The interest earned in one year is calculated as:
(1/28) x ($1,000) = $35.71
What we learn:
These stories illustrate the practical applications of fractions and demonstrate how they are used to solve real-world problems. Fractions allow us to represent and manipulate parts of a whole, enabling us to make accurate calculations and understand complex situations.
Pros:
Cons:
Table 1: Fraction, Decimal, and Percentage Equivalents
Fraction | Decimal | Percentage |
---|---|---|
5/8 | 0.625 | 62.5% |
1/28 | 0.0357 | 3.57% |
Table 2: Applications of 5/8 and 1/28
Application | Fraction |
---|---|
Measuring plywood thickness | 5/8 |
Determining probability of rolling a specific number on a die | 1/28 |
Calculating interest earned on a savings account | 1/28 |
Table 3: Common Fraction Operations
Operation | Example |
---|---|
Converting to decimal | 5/8 = 0.625 |
Simplifying | 1/28 / 1/4 = 1/7 |
Adding fractions with same denominator | 5/8 + 1/8 = 6/8 |
Subtracting fractions with different denominators | 5/8 - 1/4 = (10/8) - (2/8) = 8/8 |
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