Fraction (mathematics)
From Simple English Wikipedia, the free encyclopedia
A fraction is a mathematical expression relating two quantities or numbers, one divided by the other. The numbers must be whole numbers (or integers). For example, 1/2 is a fraction.
Mathematically, a fraction is a quotient of numbers, representing the number's value when the numerator is divided by the denominator. Thus 1⁄2 means one divided by two, or, in decimals, 0.5.
If you want to have 1⁄2 of 1⁄2, you have to multiply the denominators. That means: denominator 2 multiplied by 2 equals 4 or: 1⁄2 x 1⁄2 = 1⁄4 or: 0.5 x 0.5 = 0.25
(In this case “1⁄2 of” means mathematically "multiplication".)
If you want to have 1⁄2 divided by 1⁄2, then you have to multiply 1⁄2 and the reciprocal of 1⁄2, which is 2. Thus, that answer is 1.
[edit] External links
- Curricula for Creating Fractions
- Curricula for Teaching about Fractions
- Teaching Fractions: New Methods, New Resources
- Worksheets:Fractions
- Interactive and dynamic worksheets to visualize fractions
- Worksheets: Identifying Fractions
- Worksheets: Improper Fractions to Mixed Numbers
- Curricula for Teaching about Equivalent Fractions
- Free online quizzes about Fractions
- Endless Examples & Exercises for fractions
