jak to zrobic pomocy piec dwunastych odiac 2/12 2cale i 3/7 minus 2/7 3 i 5/8minus 3/8 3 3/4 minus 2 bardzo prosze o pomoc

5/12-2/12=3/12=1/4 2 3/7-2/7=17/7-2/7=15/7=2 1/7 3 5/8-3/8=3 2/8=3 1/4 3 3/4-2=1 3/4

5/12-2/12= 3/12= 1/4 2 i 3/7- 2/7= 2 i 1/7 3 i 5/8-3/8= 3 i 2/8= 3 i 1/4 3 i 3/4-2= 1 i 3/4