1) 10/3*1/10=1/3 0,175:0,35=0,5 1/3+1/2=2/6+3/6=5/6
28/17*51/56=3/2 1,75-1,5=0,25
5/6:1/4=5/6*4/1=10/3=3 1/3
2) 0.125:0.25=0.5 25/16*10/25=5/8 1/2+5/8=4/8+5/8=9/8
22*10/23=220/23=9 13/23 9 23/23-9 13/23=10/23
10/23*46/100=2/10=0.2 0.2+1.6=1.8
9/8*10/18=5/8
3) 8/7-23/49=56/49-23/49=33/49 33/49*147/22=9/2
0.6:3.75=0.16 0.16*2.5=0.4 4.5-0.4=4.1
4) 3.25:13=0.25 1/4*3/2=3/8 2*5/16=5/8
5/8+1/4=5/8+2/8=7/8