Respuesta :

Answer:

[tex]x=\frac{7}{30}[/tex]

Step-by-step explanation:

Given the following question:

[tex]x+\frac{2}{3} =\frac{9}{10}[/tex]

In order to find the answer to this question we need to subtract 9/10 from 2/3. To do this we need to find the common denominator, and then subtracting the numerators.

[tex]\frac{9}{10} -\frac{2}{3}[/tex]
[tex]\frac{9}{10} \times3=\frac{27}{30}[/tex]
[tex]\frac{2}{3} \times10=\frac{20}{30}[/tex]
[tex]27-20=7=\frac{7}{30}[/tex]
[tex]x=\frac{7}{30}[/tex]

Hope this helps.