Bonjour,
A)
(6/3+5/3) ( 15/5 -4/5)
= 11/3 * 11/5
= 121/15
B)
15/6 - 24/3 +3/2
= 15/6 -48/6 +9/6
= -24/6 = -4
C)
24/21 -4/14 -11/7
=24/21 - 4/14 - 33/21
= -9/21-4/14
= -3/7 -4/14
= -6/14 -4/14
= -10/14
= -5/7
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Bonjour,
A)
(6/3+5/3) ( 15/5 -4/5)
= 11/3 * 11/5
= 121/15
B)
15/6 - 24/3 +3/2
= 15/6 -48/6 +9/6
= -24/6 = -4
C)
24/21 -4/14 -11/7
=24/21 - 4/14 - 33/21
= -9/21-4/14
= -3/7 -4/14
= -6/14 -4/14
= -10/14
= -5/7