Question

ayuda porfavor soy pesima en mate :"(​

Answer 1

Respuesta:

a)

$\frac{5}{12} - \frac{7}{3} \div ( \frac{4}{3} + 2)$

$\frac{5}{12} - \frac{7}{3} \div \frac{10}{3}$

$\frac{5}{12} - \frac{7}{3} \times \frac{3}{10}$

$\frac{5}{12} - 7 \times \frac{1}{10}$

$\frac{5}{12} - \frac{7}{10}$

$= - \frac{17}{60}$

c)

$( \frac{6}{5} \div \frac{9}{10} - (2 - \frac{7}{12} )) + \frac{7}{24}$

$( \frac{6}{10} \times \frac{10}{9} - \frac{17}{12} ) + \frac{7}{24}$

$(2 \times \frac{2}{3} - \frac{17}{12} ) + \frac{7}{24}$

$( - \frac{1}{12} ) + \frac{7}{24}$

$- \frac{1}{12} + \frac{7}{24}$

$= \frac{5}{24}$

d)

$- \frac{3}{8} (3 - \frac{3}{5} - ( \frac{17}{20} - 1) \times ( \frac{1}{3} - 3))$

$- \frac{3}{8} \times (3 - \frac{3}{5} - ( - \frac{3}{20} ) \times ( - \frac{8}{3} ))$

$- \frac{3}{8} \times (3 - \frac{3}{5} + \frac{3}{20} \times ( - \frac{8}{3} ))$

$- \frac{3}{8} \times (3 - \frac{3}{5} - \frac{1}{5} \times 2)$

$- \frac{3}{8} \times (3 - \frac{3}{5} - \frac{2}{5} )$

$- \frac{3}{8} \times 2$

$= - \frac{3}{4}$

b)

$\frac{5}{36} - ( \frac{7}{16} + \frac{1}{4} \div \frac{3}{5} )$

$\frac{5}{36} - ( \frac{7}{16} + \frac{1}{4} \times \frac{5}{3} )$

$\frac{5}{36} - ( \frac{7}{16} + \frac{5}{12} )$

$\frac{5}{36} - \frac{41}{48}$

$= - \frac{103}{144}$

Answer 2

Respuesta:

a)5/12-7/3%(4/3+2)=10,33

c)[6/5%9/10-(2-7/12)[+7/24=41,33

b)5/36-(7/16+1/4%3/5)=10,66

d)-3/8[3-3/5-(17/20-1)×(1/3-3)]=-251