Calculati:
a)(11/8+1/6):37/5/11/8-3/4):1/2

b)(11/24+11/36):11/6/(11/6-5/9):23/

c)3intregi1/4+2intregi1/6):5/6/2intregi5/8-1intregi3/4)×13/7​
Repede dau coroana!!!!!!