[tex]a) \frac{6}{13} \times 260 = 6 \times 20 = 120[/tex]
[tex]b) \frac{7}{9} \times 81 = 7 \times 9 = 63[/tex]
[tex]c) \frac{3}{100} \times 600 = 3 \times 6 = 18[/tex]
[tex]d) \frac{15}{100} \times 80 = \frac{15}{10} \times 8 = \frac{3}{2} \times 8 = 3 \times 4 = 12[/tex]
