5,1(12)+128/330=5 (112-1)/990+128/330=5 111/990+384/990=5 495/990=5 1/2
2,3(72)-41/110=2 (372-3)/990-41/110=2 369/990-369/990=2
4,23(6)+29/300=4 (236-23)/900+29/300=4 213/900+87/900=4 300/900=4 1/3
3,16(54)-18/275=3 (1654-16)/9900-18/257=3 1638/9900-648/9900=3 990/9900= 3 1/10