Question

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Answer 1

Respuesta:

5= 2/9

7= 7/6

8= 29/20

10= 4/3

12= 106 botella

13= 53/72

14= 6/2

Answer 2

Explicación paso a paso:

5.

$\frac{5}{18} +\frac{4}{9}-\frac{1}{2}=\frac{5+8-9}{18} =\frac{4}{18} =\frac{2}{9}$

7.

$\frac{5}{3} -\frac{2}{4} = \frac{5}{3} -\frac{1}{2}=\frac{10-3}{6} =\frac{7}{6}$

8.

$\frac{7}{10}+\frac{3}{4} = \frac{14+15}{20}= \frac{29}{20}$

10.

$\frac{8}{21}+\frac{2}{7}-\frac{2}{3} = \frac{8+6-14}{21}=\frac{0}{21}= 0$

13.

$\frac{5}{8}+\frac{1}{9}=\frac{45+8}{72}=\frac{53}{72}$

14.

$\frac{20}{40}+\frac{5}{2}=\frac{1}{2}+\frac{5}{2}=\frac{1+5}{2}=\frac{6}{2}=3$