Решите пж 2/3+1/3 4/9+5/9 1/13+4/13+9/13 2/5+3/5+1/5+4/5 8/14-1/11-4/11+2/11

Question

Решите пж
2/3+1/3
4/9+5/9
1/13+4/13+9/13
2/5+3/5+1/5+4/5
8/14-1/11-4/11+2/11

Answer 1

1) 2/3+1/3=3/3=1
2)4/9+5/9=9/9=1
3) 1/13+4/13+9/13=14/13=1 1/13
4) 2/5+3/5+1/5+4/5=10/5=2
5)8/14-1/11-4/11+2/11=88/154-14/154+28/154=102/154=51/77

Comments

спс чувак помог