Question

me ayudan con estas fracciones por favor??

Answer 1

$\frac{11}{7} + \frac{7}{4} = \frac{44}{28} + \frac{49}{28} = \frac{93}{28} \\ \frac{8}{15} - \frac{2}{7} = \frac{56}{105} - \frac{30}{105} = \frac{26}{105}$

$( \frac{15}{21} )( \frac{4}{7} ) = \frac{60}{147}$

$\frac{9}{11} \div \frac{7}{4} = \frac{36}{77}$

$( \frac{4}{31} )( \frac{20}{7} ) = \frac{80}{217}$

$\frac{5}{6} \div \frac{3}{7} = \frac{35}{18}$

Answer 2

Respuesta:

Explicación paso a paso:

a)

$\frac{11}{7} +\frac{7}{4} = \frac{11(4)+7(7)}{(7)(4)} \\=\frac{44 + 49}{28}\\ \\= \frac{93}{28}$

b)

$\frac{8}{15} - \frac{2}{7} = \frac{8(7)-2(15)}{(15)(7)}\\ = \frac{56-30}{105} \\\\= \frac{26}{105}$

c)

$(\frac{15}{21})(\frac{4}{7}) = \frac{15*4}{21*7} \\ \\= \frac{60}{147}$

d)

$\frac{9}{11}$ ÷ $\frac{7}{4}$ = $(\frac{9}{11})(\frac{4}{7}) = (\frac{9*4}{11*7})$

$=\frac{36}{77}$

e)

$(\frac{4}{31} )(\frac{20}{7} )=\frac{4*20}{31*7} \\\\=\frac{80}{217}$

f)

$\frac{5}{6}$ ÷ $\frac{3}{7}$$= (\frac{5}{6})(\frac{7}{3} )=\frac{5*7}{6*3}$

$=\frac{35}{18}$

Saludos