who can help me ? please

Answer:
[tex]\dfrac{7}{9}[/tex]
Step-by-step explanation:
[tex]\dfrac{2}{3}=\dfrac{2\cdot 3}{3\cdot 3}=\dfrac{6}{9} \\\\\\\dfrac{6}{9}+\dfrac{1}{9}=\dfrac{7}{9}[/tex]
Hope this helps!
Answer:
Step-by-step explanation:
[tex]\frac{2x3}{3x3} \\[/tex]
multiplying by three because you want the denominator same as the other.
[tex]\frac{6}{9}[/tex]
+ [tex]\frac{1}{9}[/tex]
Add the numerators and keep the denominator the same - the denominator never gets added by the way. You only multiply them to get the denominators to equal
[tex]\frac{7}{9}[/tex]