Question

4/8+5/6=
6/9+7/8=
4/6+1/8=

Answer 1

°°°4/8+5/6=12/24+20/24=32/24(simplificam cu 4) 8/6( simplificam cu 2) =4/3 °°°6/9+7/8=48/72+63/72=111/72=37/24 °°°4/6+1/8=16/24+3/24=19/24

Answer 2

   
$\frac{4}{8} + \frac{5}{6}= \frac{4\;\cdot\;3}{8\;\cdot\;3} + \frac{5\;\cdot\;4}{6\;\cdot\;4}= \frac{12}{24} + \frac{20}{24}= \frac{12+20}{24} = \frac{32}{24} =\boxed{\frac{4}{3} } \\ \\ \frac{6}{9} + \frac{7}{8}= \frac{6\;\cdot\;8 }{9\;\cdot\;8} + \frac{7\;\cdot\;9}{8\;\cdot\;9}= \frac{48 }{72} + \frac{63}{72}=\frac{48+63 }{72}=\frac{111 }{72}=\boxed{\frac{37 }{24}}$

$\frac{4}{6} + \frac{1}{8} =\frac{4\;\cdot\;4}{6\;\cdot\;4} + \frac{1\;\cdot\;3}{8\;\cdot\;3}= \frac{16}{24} + \frac{3}{24}=\frac{16+3}{24} = \boxed{\frac{19}{24} }$