1.
x:2 + x:4 + x:8 =1
[tex]\frac{x}{2}[/tex] + [tex]\frac{x}{4}[/tex] + [tex]\frac{x}{8}[/tex] = 1
[tex]\frac{x.4}{2.4}[/tex] + [tex]\frac{x.2}{4.2}[/tex] + [tex]\frac{x}{8}[/tex] =1
[tex]\frac{x.4 + x.2 + x}{8}[/tex] = 1
[tex]\frac{x.(4+2+1)}{8}[/tex] = 1
[tex]\frac{x.7}{8}[/tex] = 1
x = 1 : [tex]\frac{7}{8}[/tex]
x = 1 x [tex]\frac{8}{7}[/tex]
x = [tex]\frac{8}{7}[/tex]
2.
[tex]\frac{1326}{1428}[/tex] = [tex]\frac{1326:102}{1428:102}[/tex] =[tex]\frac{13}{14}[/tex]
[tex]\frac{51}{119}[/tex] = [tex]\frac{51:17}{119:17}[/tex] =[tex]\frac{3}{7}[/tex]