Question

Va implorororororoorororororor ​

Answer 1

Răspuns:

$e) \: \frac{8}{15} \div \frac{4}{5} = \\ = \frac{8}{15} \times \frac{5}{4} = \\ \frac{2}{3}$

$f) \frac{2}{7} \div \frac{1}{4} = \\ = \frac{2}{7} \times \frac{4}{1} = \\ = \frac{2}{7} \times \frac{28}{7} = \\ = \frac{56}{7}$

$g) \frac{1}{6} \div \frac{5}{9} = \\ = \frac{1}{6} \times \frac{9}{5} = \\ = \frac{1}{2} \times \frac{3}{5} = \\ = \frac{5}{10} \times \frac{6}{10} = \frac{35}{10}$

$h)1 \frac{1}{3} \div \frac{2}{7} = \\ = \frac{4}{3} \times \frac{7}{2} = \\ = \frac{2}{3} \times \frac{7}{1} = \\ = \frac{2}{3} \times \frac{21}{3} = \\ = \frac{42}{3} = 14$

$i)2 \frac{1}{2} \div \frac{5}{4} = \\ = \frac{5}{2} \times \frac{4}{5} = \\ = 2$

$j) \frac{4}{3} \div 5 \frac{1}{2} = \\ = \frac{4}{3} \times \frac{2}{11} = \\ = \frac{44}{33} \times \frac{6}{33} = \frac{246}{33} = 8$