Question

1/9+2/6-7/5
Ajuda urgente

Answer 1

Resposta:

$\frac{ - 43}{45}$

Explicação passo-a-passo:

$\frac{1}{9} + \frac{2}{6} - \frac{7}{5} \: \: \: mmc = 90$

9, 6, 5 : 2

9, 3, 5 : 3

3, 1, 5 : 3

1, 1, 5 : 5

1, 1, 1= 2x3²x5=2x9x5=90

$\frac{10 + 30 - 126}{90} = \frac{ - 86}{90} = \div \frac{2}{2} = \frac{ - 43}{45}$