Respuesta :

Answer:

well i am on mobile so o cant do step by step process bbut i can give you answer

Step-by-step explanation:

answers,

1. 35/9 (3.88)

2. 599/91 (6.58)

3. -66

Answer:

[tex]\frac{\frac{14}{7}\cdot \:3+9}{9\left(\frac{18}{6}\div \frac{21}{3}\right)}[/tex]

[tex]\frac{14}{7} =2\\=2\cdot \:3+9[/tex]

[tex]=6+9[/tex]

[tex]=15[/tex]

[tex]9\left(\frac{18}{6}\div \frac{21}{3}\right)[/tex]

[tex]\frac{18}{6} =3[/tex]

[tex]\frac{21}{3} =7[/tex]

[tex]9(3\div 7)=\frac{3}{7}[/tex]

[tex]=9\cdot \frac{3}{7}=\frac{27}{7}[/tex]

[tex]\frac{27}{7} =3\frac{6}{7}[/tex]

[tex]=\frac{15}{3\frac{6}{7}}[/tex]

-------------

[tex]\frac{31}{\:7}+\frac{28}{13}[/tex]

[tex]LCM\: of \: 7 \:and \: 13 :91[/tex]

[tex]=\frac{403}{91}+\frac{196}{91}[/tex]

[tex]=\frac{403+196}{91}[/tex]

[tex]=\frac{599}{91}[/tex]

--------------

[tex]-3-21\cdot \frac{66}{22}[/tex]

[tex]\frac{66}{22} =3[/tex]

[tex]=-3-21\cdot \:3[/tex]

[tex]21\cdot \:3=63[/tex]

[tex]=-3-63[/tex]

[tex]=-66[/tex]

OAmalOHopeO

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