Question

calcule as operações com frações:

a) 7 2
___+___=
13 13


b) 8 2
___ - ___=
15 15


c).
9 10
___+___=
11. 11

d) 10 7
___ + ___=
3 3

f)

31. 17
__ - __=
6 6



e)
13 29
___+___=
10 10​

Answer 1

Resposta:

$a)\frac{7}{13} + \frac{2}{13} = \frac{9}{13}$

$b)\frac{8}{15} - \frac{2}{15} = \frac{6}{15}$

$c) \frac{9}{11} + \frac{10}{11} = \frac{19}{11}$

$d) \frac{10}{3} + \frac{7}{3} = \frac{17}{3}$

$f) \frac{31}{6} - \frac{17}{6} = \frac{14}{6}$

$e) \frac{13}{10} + \frac{29}{10} = \frac{42}{10}$

Espero ter ajudado :)