tolong bangett di jawab no.9 dan 10 pakai cara ya plisss ☺☺☺

10 . a U b : { 0,1,2,3,4,5,6,7}

[tex]9) \: 9\frac{3}{5} - 3 \frac{5}{7} = \frac{48}{5} - \frac{26}{7} \\ \: \: \: \: \: = \frac{336 - 130}{35} = \frac{206}{35} = 5 \frac{31}{35} [/tex]
10) A= {1,2,3,4,5,6,7}
B= {0,1,2,3,4}
AUB = {0,1,2,3,4,5,6,7}
semoga membantu.... maaf klo ada kesalahan