[tex]7 \times \frac{3}{13} = \frac{7 \times 3}{13} = \frac{21}{13} = \frac{1 \times 13 + 8}{13} [/tex]

[tex] = \frac{1 \times 13}{13} + \frac{8}{13} = 1 \frac{8}{13} [/tex]