Bonjour,
calculer: additionner et soustraire des fractions.
Niveau 4eme
merci beaucoup
calculer: additionner et soustraire des fractions.
Niveau 4eme
merci beaucoup
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A=5 2x2 9
— + — = —
6 3x2 6
B=3x4 -3 9
— + — = —
4x4 16 16
C=8 -4x7 -20
— + — = —
35 5x7 35
EXERCICE 38:
A= 13 2x5 3
— - — = —
25 5x5 25
B= -31 4x6 -55
— - — = —
-18 3x6 -18
C= 1x42 5 47
— - — = —
1x42 42 42
EXERCICE 39:
A= 5x2 3 -7 13x2 -7 19
— + — + — = — + — = —
2x2 4 8 4x2 8 8
B= 4 2x3 7 10x2 7 13
— + — - — = — - — = —
15 5x3 30 15x2 30 30