Bonjour,
1/5 + 3 + 2/6
= (1 x 6) / (5 x 6) + (3 x 30) / (1 x 30) + (2 x 5) / (6 x 5)
= 6/30 + 90/30 + 10/30
= 106/30
= (2 x 53) / (2 x 15)
= 53/15.
[tex]A=\frac{1}{5} +3+\frac{2}{6} \\\\A=\frac{1*6}{5*6} +\frac{3*30}{30} +\frac{2*5}{6*5} \\\\A=\frac{6}{30} +\frac{90}{30} +\frac{10}{30} \\\\A=\frac{6+90+10}{30} \\\\A=\frac{106}{30} \\\\\A=\frac{106:2}{30:2} \\\\A=\frac{53}{15}[/tex]
