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Addition of Fractions by Hemant Upreti

Addition of Fractions by Hemant Upreti
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2020-06-26 20:51
SequenceGeometric Construction
This example demonstrates the process of adding fractions. The core mathematical concepts involved are fraction addition. Using GeoGebra commands such as Circle, Point, Segment, Sequence, Rotate, Angle, CircleSector, LCM, etc., a geometric model of fraction addition can be constructed. Suitable for high-grade elementary or junior high school students to learn fraction addition.

GeoGebra Commands & Parameters

  1. Circle(A, 3) → c
  2. Circle(B, 3) → d
  3. Point(c) → C
  4. Point(d) → D
  5. Segment(C, A) → f
  6. Sequence(Segment[A, Rotate[C, f°, A]], f, (360°) / b, 360, 360 / b) → l1
  7. Sequence(Segment[B, Rotate[D, g°, B]], g, (360°) / n, 360, 360 / n) → l2
  8. Rotate(C, (360° * a / b), A) → C'
  9. Angle(C, A, C') → α
  10. Point(c) → E
  11. CircleSector(A, C, E) → e
  12. Point(d) → F
  13. CircleSector(B, D, F) → g
  14. LCM(b, n) → s