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10 exerciții cu fractii clasa a 5 a

Răspuns :


[tex] \frac{2}{3} \times \frac{4}{5} = \frac{8}{15} [/tex]
[tex] \frac{8}{4} - \frac{4}{4} = \frac{4}{4} = 1[/tex]
[tex] \frac{5}{7} + \frac{8}{7} = \frac{13}{7} [/tex]
[tex] \frac{7}{3} \div \frac{6}{7} = \frac{7}{3} \times \frac{7}{6} = \frac{49}{18} [/tex]
[tex] \frac{10}{1} + \frac{9}{1} = 10 + 9 = 19[/tex]
[tex] \frac{27}{3} - \frac{13}{3} = \frac{14}{3} [/tex]
[tex] \frac{5}{6} + \frac{4}{6} = \frac{9}{6} [/tex]
[tex] \frac{9}{3} \div \frac{6}{4 } = \frac{9}{3 } \times \frac{4}{6} = (simplificam) \\ = \frac{3 \times 4}{3 \times 2} = 1[/tex]
[tex] \frac{2}{6} = 2[/tex]
[tex] \frac{7}{6} + \frac{3}{6} = \frac{10}{6} [/tex]
[tex] \frac{10}{10} - \frac{9}{10 } = \frac{1}{10} [/tex]