[tex]a)0.005 = \frac{5}{1000} = \frac{1}{200} [/tex]
[tex]b)M1)1.(3) = \frac{13 - 1}{9} = \frac{12}{9} = \frac{4}{3} [/tex]
[tex]sau[/tex]
[tex]M2)1.(3) = 1 \frac{3}{9} = \frac{1 \times 9 + 3}{9} = \frac{9 + 3}{9} = \frac{12}{9} = \frac{4}{3} [/tex]
[tex]c)M1)2.1(4) = \frac{214 - 21}{90} = \frac{193}{90} [/tex]
[tex]sau[/tex]
[tex]M2)2.1(4) = 2 \frac{14 - 1}{90} = 2 \frac{13}{90} = \frac{2 \times 90 + 13}{90} = \frac{180 + 13}{90} = \frac{193}{90} [/tex]
