Question

1)7/13-4/13 2)5/19+6/19 3)19/25+4/25-22/25 4)34/39-15/39-8/39

Answer 1

1) = (7-4)/13=3/13
2) = (5+6)/19=11/19
3) = (19+4-22)/25=1/25
4) = (34-15-8)/39=11/39

Answer 2

спс

Answer 3

ага