Respuesta :

[tex]1\frac{23}{45}[/tex]

Explanation:

[tex]2\frac{9}{10}\text{ - 1}\frac{7}{18}[/tex]

Convert to improper fraction:

[tex]\begin{gathered} \frac{29}{10}\text{ - }\frac{25}{18} \\ \text{LCM = 10(18) = 180} \\ \frac{29(18)\text{ - }25(10)}{180}\text{ } \\ =\text{ }\frac{522\text{ }-\text{ 250}}{180} \end{gathered}[/tex][tex]\begin{gathered} =\frac{272}{180} \\ 4\text{ is common to both} \\ =\text{ }\frac{4(68)}{4(45)}=\frac{68}{45} \\ =\text{ 1}\frac{23}{45} \end{gathered}[/tex]