Fractions et demi-droite graduée
Author: Yvan Monka - m@ths et tiques 2012

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Pour placer par exemple  $ \frac{7}{4}$ sur la droite graduée :
1) Déplacer le point vert pour partager l'unité (le gâteau) en 4 parties.
2) Déplacer le point rouge en comptant 7 quarts.

Recommencer avec de nombreuses autres fractions

A = (-1, 0)
B = (8, 0)
a = Ray(A, B)
C = Point(a)
c = Circle(C, A)
D = Intersect(c, a, 2)
d = Circle(D, C)
E = Intersect(d, a, 2)
e = Circle(E, D)
F = Intersect(e, a, 2)
f = Circle(F, E)
G = Intersect(f, a, 2)
g = Circle(G, F)
H = Intersect(g, a, 2)
h = Circle(H, G)
I = Intersect(h, a, 2)
k = Circle(I, H)
J = Intersect(k, a, 2)
p = Distance(A, C)
K = Intersect(p, a, 2)
q = Circle(K, J)
L = Intersect(q, a, 2)
r = Circle(L, K)
M = Intersect(r, a, 2)
s = Circle(M, L)
N = Intersect(s, a, 2)
t = Circle(N, M)
O = Intersect(t, a, 2)
P = Point(a)
b = OrthogonalLine(A, a)
i = OrthogonalLine(C, a)
Q = Point(b)
j = OrthogonalLine(Q, b)
Q' = Mirror(Q, a)
l = OrthogonalLine(Q', b)
R = Intersect(i, l)
S = Intersect(i, j)
poly1, q', r_1, s_1, q_1 = Polygon(Q', R, S, Q)
T = (-1, -3)
U = (12, -3)
V = (12, -7)
W = (-1, -7)
poly2, t_1, u, v, w = Polygon(T, U, V, W)