Răspuns :
a=2,7 si b=486-48/90=438/90=146/30=73/15
Mp=(a*4+b*6)/10=(2,7*4+6*73/15)/10=(10,8+146/5)/10=(108/10+292/10)/10=
400/10*1/10=40/10=4
Mp=(a*4+b*6)/10=(2,7*4+6*73/15)/10=(10,8+146/5)/10=(108/10+292/10)/10=
400/10*1/10=40/10=4
b=4×90+78/90=438/90=simplificăm cu 3=146/30=73/15
Map=(2,7*4+6*73/15)/4+6=(10,8+146/5)/10=(108/10+292/10)/10=40/10=4
Sper că te-am ajutat!