22/55 + 3/5 + 1/3 + 1/4 =
=25/60 + 2/7
=27/67
15/20 + 3/12 + 6/8 + 1/5 =
=18/32 + 7/13
=25/45
3/4 + 3/10 + 4/20 + 5/8 + 1/2 =
= 3/14 + 9/28 + 1/2
=12/42 + 1/2
=13/44
1/24 + 1/120 + 1/300 =
= 3/444
1/48 + 5/52 + 7/180 + 1/3000=
=6/100 + 8/3180
=14/3280
Si la ultima nu stiu scz!
