1 пример
1. 1 1/2: 3 3/4=3/2*4/15=2/5
2. 1 1/7-23/49=8/7-23/49=56/49-23/49=33/49
3. 2/5* 2 1/2=2/5*5/2=1
4. 33/49:22/147=33/49*147/22=9/2
5. 3 3/4 - 1 1/2=15/4-3/2=15/4-6/4=9/4
6. 9/4+1=13/4
7. 13/4+9/2=13/4+18/4=31/4=7 3/4
2 пример
1. 3 1/4-2/3=13/4-2/3=39/12-8/12=31/12
2. 2 5/18-17/36=41/18-17/36=82/36-17/36=65/36
3.31/12:2/3=31/12*3/2=31/8
4.65/36*18/65=1/2
5. 2:3 1/5=2*5/16=5/8
6. 5/8+31/8=36/8=9/2
7. 9/2-1/2=8/2=4