Mathématiques
pierre2511
7

bonjour je voudrais savoir si mes fractions sont bonnes svp merci A=13/8+5/2+3/4=39/8 B=5/11+11/24+1/6=? C=2+3/7+11/14=45/14 D=3/5+4/15+7/30=33/30 E=15/9+2/3-6/18=2 F=1+9/34+3/2=94/34

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Obadele253

Bonjour ,  A = 13/8 + 20/8 + 6/8 = 39/8 B = 5/11 + 11/24 + 4/24  = 5/11 + 15/24 = 5/11 + 5/8 = 40/88 + 55/88 = 95/88 C = 28/14 + 6/14 + 11/14 = 45/14 D = 18/30 + 8/30 + 7/30 = 33/30 = 11/10 E = 30/18 + 12/18  - 6/18 = 36/18 = 2 F = 34/34 + 9/34 + 51/34 = 94/34 = 47/17

stimohamed

Bonjour Mumujacky A=13/8+5/2+3/4=39/8 B=5/11+11/24+1/6= [latex]B=\dfrac{5\times24}{11\times24}+\dfrac{11\times11}{24\times11}+\dfrac{1\times44}{6\times44}[/latex] [latex]B=\dfrac{120}{264}+\dfrac{121}{264}+\dfrac{44}{264}[/latex] [latex]B=\dfrac{285}{264}=\dfrac{3\times95}{3\times88}=\dfrac{95}{88}[/latex] [latex]\boxed{B=\dfrac{95}{88}}[/latex] C=2+3/7+11/14=45/14 D=3/5+4/15+7/30=33/30 = 11/10 E=15/9+2/3-6/18=2 F=1+9/34+3/2=94/34 = 47/17

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