Question

simplifique a expressão

Answer 1

${ \frac{9}{8} } + 2.{ \frac{6}{7} } \\ \frac{9}{8} + \frac{16}{14} = \frac{63}{56} + \frac{64}{56} = 127$

Answer 2

=(√81/√64) + 2*(√36/√49)
= (9/8) + 2(6/7)
= (9/8) + (12/7)
Fazendo o mmc
= (9*7/8*7) + (12*8/7*8)
= 63+ 96/56
= 159/56