[tex] \frac{1}{3} + 0.25 = \frac{1}{3} + \frac{1}{4} = \frac{4}{12} + \frac{3}{12} = \frac{7}{12} \\ 0.75 - \frac{4}{7} = \frac{3}{4} - \frac{4}{7} = \frac{21}{28} - \frac{16}{28} = \frac{5}{28} \\ 4 \frac{1}{3} \div 0.26 = \frac{13}{3} \div \frac{26}{100} = \frac{13}{3} \times \frac{100 }{26} = \frac{100}{6} = \frac{50}{3} = 16 \frac{2}{3} [/tex]
