Seudónimo Seudónimo
  • 14-09-2020
  • Mathematics
contestada

Hello, stuck on these can someone please help.:)

Hello stuck on these can someone please help class=

Respuesta :

Annder
Annder Annder
  • 14-09-2020

Step-by-step explanation:

9.

[tex] \frac{8}{9} + \frac{5}{9} = \frac{8 + 5}{9} = \frac{13}{9} [/tex]

10.

[tex] \frac{6}{12} + ( - \frac{14}{12} ) = \frac{6 - 14}{12} [/tex]

11.

[tex] \frac{ - 6 + 3}{8} = \frac{ - 3}{8} [/tex]

12.

[tex] \frac{9 - 7}{20} = \frac{2}{20} = \frac{1}{10} [/tex]

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