3/16(1/16+5/8) 1/7+2/21+3/7 7/10+2/15+11/30 58/61+45/61 379/401+127/401

3/16(1/16+5/8)= 3/16(1/16+10/16)= 3/16*11/16= 33/256
1/7+ 2/21+3/7= 3/21+2/21+9/21=14/21= 2/3
7/10+2/15+11/30= 21/30+4/30+11/30=36/30= 1целая 6/30= 1 целая 1/5
58/61+ 45/61= 103/61= 1 целая 42/61
379/401+127/401= 506/401= 1 целая 105/401