Question

me lo pueden resolver por favor ​

Answer 1

Respuesta:

$a) \frac{2}{3} + \frac{3}{4} = \frac{2(4) + 3(3)}{3(4)} = \frac{17}{12}$

$a) \frac{2}{3} + \frac{3}{4} = m.c.d (12) = \frac{4(2) + 3(3)}{12} = \frac{17}{12}$

$a) \frac{2}{3} + \frac{3}{4} = \frac{4(2)}{4(3)} + \frac{3(3)}{3(4)} = \frac{8}{12} + \frac{9}{12} = \frac{17}{12}$

$b) \frac{7}{5} - \frac{1}{2} = \frac{2(7) - 5(1)}{5(2)} = \frac{9}{10}$

$b) \frac{7}{5} - \frac{1}{2} = m.c.d(10) = \frac{2(7) - 5(1)}{10} = \frac{9}{10}$

$b) \frac{7}{5} - \frac{1}{2} = \frac{2(7)}{2(5)} - \frac{5(1)}{5(2)} = \frac{14}{10} - \frac{5}{10} = \frac{9}{10}$

$c) \frac{4}{5} \times \frac{3}{4} = \frac{4(3)}{5(4)} = \frac{12}{20} = \frac{3}{5}$

$c) \: simplificamos \: \frac{4}{5} \times \frac{3}{4} = \frac{3}{5}$

$c) \frac{4}{5} \times \frac{3}{4} = \frac{3}{5}$

$d) \frac{6}{7} \div \frac{2}{5} = \frac{6(5)}{7(2)} = \frac{30}{14} = \frac{15}{7}$

$d) \frac{6}{7} \div \frac{2}{5} = \frac{ \frac{6}{7} }{ \frac{2}{5} } = \frac{30}{14} = \frac{15}{7}$

$d) \frac{6}{7} \times \frac{2}{5} = \frac{7}{6} \times \frac{2}{5} = \frac{30}{14} = \frac{15}{7}$

$e) \frac{3}{4} \div 6 = \frac{ \frac{3}{4} }{\frac{6}{1} } = \frac{3}{24} = \frac{1}{8}$

$e) \frac{3}{4} \div \frac{6}{1} = \frac{4}{3} \times \frac{6}{1} = \frac{3}{24} = \frac{1}{8}$

$e) \frac{3}{4} \div \frac{6}{1} = \frac{ \frac{3}{4} }{ \frac{6}{1} } = \frac{3}{24} = \frac{1}{8}$