Question

9/4÷21/16=
porfa es para hoy​

Answer 1

Respuesta:

$\frac{\frac{9}{4} }{\frac{21}{16} }=\frac{9*16}{4*21}=\frac{144}{84}=\frac{72}{42}=\frac{36}{21}=\frac{12}{7}=1.71428571429$

Te recomiendo buscar, como realizar "la doble C" con fracciones.

a)0.73×6/5=  $0.73*\frac{6}{5}=\frac{4.38}{5}=0.876$

c)3.7-12/9×5/8=  

$3.7-(\frac{12}{9} *\frac{5}{8})=3.7-(\frac{60}{72})=\frac{72*3.7}{72}-\frac{60}{72}=\frac{266.4}{72}-\frac{60}{72}=\frac{206.4}{72}=2.86666666667$

d)2.9×3/7+1.2×1/4  = $(2.9*\frac{3}{7})+(1.2*\frac{1}{4})=\frac{8.7}{7}+\frac{1.2}{4}=\frac{8.7*4+7*1.2}{28}=\frac{34.8+8.4}{20}=\frac{43.2}{28}= 1.54285714286$

Explicación paso a paso: