Bonsoir :)
A= 1/6+5/12
= 1×2/6×2+5/12
= 2/12+5/12
= 2+5/12
= 7/12
Donc Jules a faux pour celle ci
B= 3×(4-5/7)
= 3×(4×7/1×7-5/7)
= 3×(28/7-5/7)
= 3×23/7
= 69/7
Donc Jules a bon pour celle ci
C= 3/8+7/24×5
= 3×3/8×3+7/34×5
= 9/24+7/24×5
= 9+7/24×5
= 16/24×5
= 16×5/24
= 80/24
= 10×8/3×8
= 10/3
D= 5×3/4
= 5×3/1×4
= 15/4
Bonne soirée :)
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Bonsoir :)
A= 1/6+5/12
= 1×2/6×2+5/12
= 2/12+5/12
= 2+5/12
= 7/12
Donc Jules a faux pour celle ci
B= 3×(4-5/7)
= 3×(4×7/1×7-5/7)
= 3×(28/7-5/7)
= 3×23/7
= 3×23/7
= 69/7
Donc Jules a bon pour celle ci
C= 3/8+7/24×5
= 3×3/8×3+7/34×5
= 9/24+7/24×5
= 9+7/24×5
= 16/24×5
= 16×5/24
= 80/24
= 10×8/3×8
= 10/3
Donc Jules a faux pour celle ci
D= 5×3/4
= 5×3/1×4
= 15/4
Donc Jules a faux pour celle ci
Bonne soirée :)