Sagot :
B = -7/3 : (-21/6) = -7/3 * (-6/21) = 42/63 = 2/3
C = -4 : 7/3 = -4 * 3/7 = -12/7
D = -4/7 : 3/-5 = -4/7 * -5/3 = 20/21
C = -4 : 7/3 = -4 * 3/7 = -12/7
D = -4/7 : 3/-5 = -4/7 * -5/3 = 20/21
B = -7 sur 3 : -21 sur 6
=-7/3 x 6/21
=-7/21 x 6/3
=-1/3 x2
=-2/3
C = -4 : 7 sur 3
=-4 x 3/7
=-12/7
D = -4 sur 7 : 3 sur -5
=-4/7 x -5/3
=20/21
=-7/3 x 6/21
=-7/21 x 6/3
=-1/3 x2
=-2/3
C = -4 : 7 sur 3
=-4 x 3/7
=-12/7
D = -4 sur 7 : 3 sur -5
=-4/7 x -5/3
=20/21