Question

1)Calcule:
a)+ 12/17 + 4/17=


b)+ 14/9 - 18/9=


c)- 8/100 - 0,91=


d)- 1/4 + 2/5=​

Answer 1

Respostas:

A)

$\frac{12}{17} + \frac{4}{17} = \frac{16}{17}$

B)

$\frac{14}{9} - \frac{18}{9} = - \frac{4}{9}$

C)

$\frac{-8}{100} - 0.91 = \frac{-8}{100} - \frac{91}{100} = \\ \: \frac{-99}{100} \: \: \: ou \: \: -0.99$

D)

$- \frac{1}{4} + \frac{2}{5} = \frac{ - 5 + 8}{20} = \frac{3}{20}$

Answer 2

ESPERO TER AJUDADO,BONS ESTUDOS!