Bonsoir,
a)
[tex]\frac{1}{10} +\frac{1}{2} *\frac{2}{5} \\\\=\frac{1}{10} +\frac{2}{10} \\\\=\frac{3}{10} \\\\=0.3[/tex]
b)
[tex]\frac{1}{3} *(\frac{2}{5} +\frac{3}{10} )\\\\=\frac{1}{3} *(\frac{4}{10} +\frac{3}{10} )\\\\=\frac{1}{3} *\frac{7}{10} \\\\=\frac{7}{30}[/tex]
c)
[tex]\frac{41}{12} -(\frac{5}{2} *(\frac{1}{3} +\frac{5}{6} ))\\\\=\frac{41}{12} -(\frac{5}{2} *(\frac{2}{6} +\frac{5}{6} ))\\\\=\frac{41}{12} -(\frac{5}{2} *\frac{7}{6} )\\\\=\frac{41}{12} -\frac{35}{12}\\\\=\frac{6}{12} \\\\=\frac{1}{2} \\\\=0.5[/tex]
