Question

ayuda (┛◉Д◉)┛彡┻━┻(┛◉Д◉)┛彡┻━┻(┛◉Д◉)┛彡┻━┻​

Answer 1

Explicación paso a paso:

1)$\frac{5}{8} +\frac{9}{2} +\frac{11}{2}$    mcm = 8

8/8=1*5=5

8/2=4*9=36

8/2=4*11=44

$\frac{5+36+44}{8}=\frac{85}{8} = \frac{10*8 +5}{8} =10\frac{5}{8}$

2) $\frac{8}{7} -\frac{5}{6}= \frac{(8*6)-(7*5)}{7*6}=\frac{48-35}{42}=\frac{13}{42}$

3)$\frac{2}{9}*\frac{5}{4}= \frac{2*5}{9*4} = \frac{10}{36}=\frac{5*2}{18*2}= \frac{5}{18}$