Question

Resuelva estos ejercicios en tu cuaderno a) 1/2*( 6 1/5 - 2/5 = b) ( 3 1/2 - 2 1/2) c) 2/9* 9/10 +2/3 d 3/5 + 2 ( 2/5 - 3/10 ) = c) 5/6 + 2 1/3 + 2 * 1/4 = f 3/30 + 5/6 + 2/3 * 3/5 = g) 5/6 + 1/3 + 2 = h) 3 * 2/5 - 2 1/3 + 6 =

Answer 1

Respuesta

a) 1/2*( 6 1/5 - 2/5 =

$1/2\cdot \left(6\frac{1}{5}-2/5\right)\\\\=1/2\cdot \left(\frac{31}{5}-2/5\right)\\\\=1/2\cdot \frac{29}{5}\\\\=\frac{29}{10}\\\\=2\frac{9}{10}$

b) ( 3 1/2 - 2 1/2)

$3\frac{1}{2}-2\frac{1}{2}\\\\=1+0\\\\1$

c) 2/9* 9/10 +2/3

$2/9\cdot \:9/10+2/3\\\\\frac{2}{10}+2/3\\\\=\frac{2}{10}+\frac{2}{3}\\\\=\frac{13}{15}$

d 3/5 + 2 ( 2/5 - 3/10 ) =

$3/5+2\left(2/5-3/10\right)\\\\=\frac{3}{5}+2\cdot \frac{1}{10}\\\\=\frac{3}{5}+\frac{1}{5}\\\\=\frac{4}{5}$

c) 5/6 + 2 1/3 + 2 * 1/4 =

$5/6+2\frac{1}{3}+2\cdot \:1/4\\\\=\frac{5}{6}+\frac{7}{3}+2\cdot \:1/4\\\\=\frac{5}{6}+\frac{7}{3}+2\cdot \:1/4\\\\=\frac{5}{6}+\frac{7}{3}+\frac{2}{4}\\\\=\frac{11}{3}\\\\=3\frac{2}{3}$

f 3/30 + 5/6 + 2/3 * 3/5 =

$3/30+5/6+2/3\cdot \:3/5\\\\=\frac{3}{30}+5/6+2/3\cdot \:3/5\\\\=\frac{3}{30}+\frac{5}{6}+2/3\cdot \:3/5\\\\=\frac{3}{30}+\frac{5}{6}+\frac{2}{5}\\\\=\frac{4}{3}\\\\=1\frac{1}{3}$

g) 5/6 + 1/3 + 2 =

$5/6+1/3+2\\\\=\frac{5}{6}+1/3+2\\\\=\frac{19}{6}\\\\=3\frac{1}{6}$

h) 3 * 2/5 - 2 1/3 + 6 =

$3\cdot \:2/5-2\frac{1}{3}+6\\\\=\frac{6}{5}-\frac{7}{3}+6\\\\=\frac{73}{15}\\\\=4\frac{13}{15}$