Free adding and subtracting fractions software for windows

Reducing Fractions 2.0i offers a potential and easy to use program which challenges arithmetic students to prove their skill in reducing fractions. The problems are presented in a simple one-at-a-time format and the program keeps score as problems are solved. Each game can be configured for max numerator and denominator, proper and/or improper fractions, and problem set. 65000 problems sets are available.

Enhancements: May include unspecified updates, enhancements, or bug fixes.

Jamit Fractions Free is a math educational software for learning fractions. Topics are presented in short lessons, each with complete references, examples and its own practice game.The use of HTML allowed for cross linking of terms and definitions. The topics covered : fraction concept, equivalent fractions, simplifying fractions. The dominating art of each lesson is its practice game. The game generates fraction problems to be solved. The student has all the help at hand. He can access corresponding references and examples without leaving the game,he can ask for a little hint or request a solution with a full explanation.

A math unit for working with vulgar fractions. The Vulgar Fraction Delphi Component is a math unit for working with vulgar fractions.
System requirements:
- Delphi

CurTiPot pH and Acid-Base Titration Curves 3.1.1 is created as an integrated and versatile tool which helps effectively with acid-base equilibria learning and practicing, in high school, college or research laboratory.

Major Features:

1. Calculating the pH of any aqueous solution of acids and bases (strong, weak or polyprotic), salts and complex mixtures
2. Generating graphics of the dissociated and undissociated fractions of acids and bases as a function of pH (distribution diagrams)
3. Evaluating the effect on pH by adding strong acid or strong base to a buffer
4. Simulating complete acid-base titration curves (pH versus volume of titrant)
5. Analyzing potentiometric titration curves by graphical methods with interpolation and smoothing or by nonlinear regression, to determine concentrations and pKas of real samples, from vinegar to acid rain.

Enhancements:

• A single-file Excel workbook with seven spreadsheets comprising graphics, instructions, examples, database and visual basic macros
• Uninstalled while closing the file (former versions, from 1992 up, run only in DOS).