7:(5:2x2:5)+11:30:6:3+1=7:(5:5)+11:30:6:3+1=7:1+11:30:6:3+1=7+11:11:30:6:3+1=7+11/30:6:3+1=7+11/30x1/6:+1=7+11/180:3+1=7+11/180x1/3+1=7+11/540+1=7x540+11+1x540/540=7x540+11+540/540=3780+11+540/540431/540=8x11/540 100%ca este corect acolo unde am pus(/ )e in lokul fractiei
