Răspuns
Raspuns - a= 94\225
b=473\60
c=199\30
Explicație pas cu pas:
a. 7\50+10\36=[(18*7)+(10*25)]\900=
( 126+250)\900=376\900=188\450=94\225
b. 11\15+24\3-17\20=[(4*11)+(24*20)-(3*17)]\60=
(44+480-51)\60=(544-51)\60=473\60
c. 13\2-29\60+37\40=[(60*13)-(2*29)+(37*3)]\120=
(780-58+74)\120=
(722+74)\120=796\120=398\60=199\30