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9th Grade

8 Qs

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Assessment

Quiz

Mathematics

9th Grade

Practice Problem

Medium

Created by

Anna Dravecká

Used 193+ times

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8 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Zkraťte zlomky:  acbcac+bc=\frac{ac-bc}{ac+bc}=  

 aba+b\frac{a-b}{a+b}  

 11  

 a+bab\frac{a+b}{a-b}  

 ab\frac{a}{b}  

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Zkraťte zlomek:  a2aba2+ab=\frac{a^2-ab}{a^2+ab}=  

 a+bab\frac{a+b}{a-b}  

 aba+b\frac{a-b}{a+b}  

 a2b\frac{a^2}{b}  

1

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Zkraťte zlomek:  2xy+y2y2=\frac{2xy+y^2}{y^2}=  

 xy\frac{x}{y}  

 2xy\frac{2x}{y}  

 2x+yy\frac{2x+y}{y}  

 2y+xy\frac{2y+x}{y}  

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Zkraťte zlomek:  a2abb2ab=\frac{a^2-ab}{b^2-ab}=  

žádné z uvedených řešení

 a-a  

 ab\frac{a}{b}  

 ab-\frac{a}{b}  

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Zkraťte zlomek:  m2+mmn+n=\frac{m^2+m}{mn+n}=  

 mm  

 mn\frac{m}{n}  

 1n\frac{1}{n}  

 nm-\frac{n}{m}  

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Zkraťte zlomek:  2a24ab3ab6b2=\frac{2a^2-4ab}{3ab-6b^2}=  

 2a3b\frac{2a}{3b}  

 23\frac{2}{3}  

 2b3a\frac{2b}{3a}  

ani jedno z řešení

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Zkraťte zlomek:  4x24xy2y22xy=\frac{4x^2-4xy}{2y^2-2xy}=  

 2x22xyy2xy=\frac{2x^2-2xy}{y^2-xy}=  

 x2xyy2xy\frac{x^2-xy}{y^2-xy}  

 2xy\frac{2x}{y}  

 2xy-\frac{2x}{y}  

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