Sagot :
Bonjour
Calculer et donner le résultat sous forme de fractions simplifiée le plus possible (les détails des calculs doivent apparaître)
A= 3/11 + 5/11 * 22/15
A = (3 x 15) / (11 x 15) + 110/165
A = 45/165 + 110/165
A = 155/165
A = (5 x 31) / (5 x 33)
A = 31/33
B= 4/5 + 7/6 *(5/6-1/4)
B = 4/5 + 7/6 x [(5 x 2) / (6 x 2) - (1 x 3) / (4 x 3)]
B = 4/5 + 7/6 x (10/12 - 3/12)
B = 4/5 + 7/6 x 7/12
B = 4/5 + 49/72
B = (4 x 72) / (5 x 72) + (49 x 5) / (72 x 5)
B = 288/360 + 245/360
B = 533/360.
A= 3/11 + 5/11 X 22/15
A= 3/11 + 110/165
A= 3/11 + 2/3
A= 3x3/11x3 + 2x11/3x11
A= 9/33 + 22/33
A= 31/33
B= 4/5 + 7/6 X (5/6 - 1/4)
B= 4/5 + 7/6 X (5x2/6x2 - 1x3/4x3)
B=. ”. ( 10/12 - 3/12)
B= ”. 7/12
B= 4/5 + 49/72
B= 4x72/5x72 + 49x5/72x5
B= 288/360 + 245/360
B= 533/360
A= 3/11 + 110/165
A= 3/11 + 2/3
A= 3x3/11x3 + 2x11/3x11
A= 9/33 + 22/33
A= 31/33
B= 4/5 + 7/6 X (5/6 - 1/4)
B= 4/5 + 7/6 X (5x2/6x2 - 1x3/4x3)
B=. ”. ( 10/12 - 3/12)
B= ”. 7/12
B= 4/5 + 49/72
B= 4x72/5x72 + 49x5/72x5
B= 288/360 + 245/360
B= 533/360