Răspuns:
a=2 pe 7
b=6 pe 12
c=6 pe 16
Bună!♥️
a) 5/7-3/7+---=4/7
2/7+---=4/7
=4/7-2/7
=2/7
"/"=linie fractie
b)--- -(9/12-1/12)=2/12
--- - 8/12=2/12
=8/12+2/12
=10/12
c)(7/16+2/16)- ---=3/16
9/16- ---=3/16
=9/16-3/16
=6/16
✏Baftă la teme!✏
