Question

Calcule sinplixando ao maxíma (A)1/4-2/3 (B)7/8-3/8
(C) 3/9-9/2 (D) 6/7- 10 /9 (E) 8/15-5/11 (H) 5/2-3/4 (F) 8/13 ÷ 9/13

gente é amanhã pfv me ajuda

Answer 1

$c) \: \frac{3}{9} - \frac{9}{2} = \frac{6}{18} - \frac{81}{18} = - \frac{75}{18} = - \frac{25}{6}$

$a) \: \frac{1}{4} - \frac{2}{3} = \frac{3}{12} - \frac{8}{12} = - \frac{5}{12}$
$b) \: \frac{7}{8} - \frac{3}{8} = - \frac{4}{8} = - \frac{1}{2}$
$d) \: \frac{6}{7} - \frac{10}{9} = \frac{54}{63} - \frac{70}{63} = - \frac{16}{63}$
$e) \: \frac{8}{15} - \frac{5}{11} = \frac{88}{165} - \frac{75}{165} = - \frac{13}{165}$
$f) \: \frac{ \frac{8}{13} }{ \frac{9}{13} } = \frac{8}{13} \times \frac{13}{9} = \frac{104}{117} = \frac{8}{9}$
$h) \: \frac{5}{2} - \frac{3}{4} = \frac{10}{4} - \frac{3}{4} = \frac{7}{4}$