Question

1/5 + 2/3
6/7 - 1/4
8/9 x 6/8
2/14 + 4/18
5/9 ÷ 4/2


Plis ayuda​

Answer 1

Explicación paso a paso:

1/5+2/3=13/15

6/7-1/4=17/28

8/9×6/8=2/3

2/14+4/18=23/63

5/9÷4/2=5/18

Answer 2

Respuesta:

1/5 + 2/3 =13/15

6/7 - 1/4 =17/28

8/9 x 6/8 =2/3

2/14 + 4/18 =23/63

5/9 ÷ 4/2=5/18

Explicación paso a paso:

$1/5 + 2/3\\=\frac{3}{15}+\frac{10}{15}\\=\frac{3+10}{15}\\=\frac{13}{15}\\=0.8666666666....$

$6/7 - 1/4\\=\frac{24}{28}-\frac{7}{28}\\=\frac{24-7}{28}\\=\frac{17}{28}\\=0.6071428$

$8/9 x 6/8\\\frac{8}{9}\cdot \frac{6}{8}\\=\frac{8\cdot \:6}{9\cdot \:8}\\=\frac{6}{9}\\=\frac{2}{3}\\=0.66666666666666....$

$2/14 + 4/18\\\frac{2}{14}+\frac{4}{18}\\=\frac{1}{7}+\frac{4}{18}\\=\frac{1}{7}+\frac{2}{9}\\=\frac{9}{63}+\frac{14}{63}\\=\frac{9+14}{63}\\=\frac{23}{63}\\=0.3650793$

$5/9 : 4/2\\\frac{\frac{5}{9}}{\frac{4}{2}}\\=\frac{5\cdot \:2}{9\cdot \:4}\\=\frac{5\cdot \:2}{36}\\=\frac{10}{36}\\=\frac{5}{18}\\=0,277777777....$

Espero que te sirva cada uno con su respectiva solución