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Fraction Subtraction Demo (Unlike Denominators)

Fraction Subtraction Demo (Unlike Denominators)
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2017-07-22 16:52
FunctionCoordinate GeometryGeometric Construction
In collections Fractions الكسور
This example demonstrates how to perform fraction subtraction with unlike denominators using GeoGebra. It involves core math concepts like fraction operations, Least Common Multiple (LCM), Greatest Common Divisor (GCD), and fraction representation. Construction highlights include commands like Random, If, LCM, GCD, FractionText, and objects such as text, buttons, and variables for interactive visualization. Suitable for middle school and above students learning fraction arithmetic and mathematical visualization.

GeoGebra Commands & Parameters

  1. Random(2, 9) → dd
  2. Random(2, 20) → cc
  3. Random(2, 9) → bb
  4. Random(2, 20) → aa
  5. If(m > 0, aa, cc) → a
  6. If(m > 0, bb, dd) → b
  7. If(m > 0, cc, aa) → c
  8. If(m > 0, dd, bb) → d
  9. LCM(b, d) → l
  10. If(a / b < c / d, "<", If[a / b > c / d, ">", "="]) → Ineq
  11. GCD((a * d) - (c * b), (b * d)) → ll
  12. FractionText(a / b - c / d) → text13

AI Drawing Prompt Reference

Create a diagram for fraction subtraction with unlike denominators, showing two fractions a/b and c/d. Randomly generate numerators and denominators, find the least common multiple l of the denominators, and then calculate and display the difference between the two fractions as text13.
The prompt above was compiled from the original drawing commands and is for reference only.