Respuesta :

Answer:[tex]\begin{gathered} A)\text{ 1}\frac{11}{12} \\ B)\text{ 8} \end{gathered}[/tex]Explanations:

A)

[tex]\frac{1}{2}+\frac{2}{3}+\frac{3}{4}[/tex]

Find the LCM of 2, 3, 4

LCM = 12

The expression becomes:

[tex]\begin{gathered} \frac{6+8+9}{12} \\ =\text{ }\frac{23}{12} \\ =\text{ 1}\frac{11}{12} \end{gathered}[/tex]

B)

[tex]\begin{gathered} \frac{2}{3}\times\frac{42}{5}\times\frac{10}{7} \\ =\text{ }\frac{2\times6\times2}{3} \\ =2\times2\times2 \\ =\text{ 8} \end{gathered}[/tex]

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