9/2-15/6:5/2+5/4 tolong

[tex] \frac{9}{2}-( \frac{15}{6}: \frac{5}{2}) + \frac{5}{4} [/tex]
= [tex] \frac{9}{2} -(\frac{15}{6} * \frac{2}{5})+ \frac{5}{4} [/tex]
= [tex] \frac{9}{2} -\frac{5}{5}/1+ \frac{5}{4} [/tex]
= [tex] \frac{90}{20} - \frac{20}{20} + \frac{25}{20} [/tex] *KPK 20*
= [tex] \frac{95}{20} [/tex]
= [tex]4 \frac{15}{20} [/tex]
= [tex]4 \frac{3}{4} [/tex]

9/2 - 15/6 : 5/2 + 5/4
= 9/2 - 15/6 × 2/5 + 5/4
= 18/4 - 30/30 + 5/4
= 18/4 + 5/4 - 1
= 23/4 - 4/4
= 19/4
= 4 3/4