Bonjour,
[tex]-\frac{9}{7}+1+\frac{-7}{8}= -\frac{9*8}{7*8}+\frac{1*56}{56} -\frac{7*7}{8*7}=-\frac{72}{56} +\frac{56}{56}-\frac{49}{56}=\frac{-65}{56}[/tex]
- (9 × 8)/(7 × 8) + (1 × 56)/(1 × 56) - (7 × 7)/(8 × 7) = - 72/56 + 56/56 - 49/56 = - 16/56 - 49/56 = -65/56
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Bonjour,
[tex]-\frac{9}{7}+1+\frac{-7}{8}= -\frac{9*8}{7*8}+\frac{1*56}{56} -\frac{7*7}{8*7}=-\frac{72}{56} +\frac{56}{56}-\frac{49}{56}=\frac{-65}{56}[/tex]
Bonjour,
- (9 × 8)/(7 × 8) + (1 × 56)/(1 × 56) - (7 × 7)/(8 × 7) = - 72/56 + 56/56 - 49/56 = - 16/56 - 49/56 = -65/56