Question

ПОМОГИТЕ ПОЖАЛУЙСТА СРОЧНО НАДО!!!!!!! (4,5,6)

Answer 1

1) 1/3 + 1/5=(5+3)/15=8/15;
2)1/5 + 1/9= (9+5)/45=14/45;
3) 1/7 + 1/4=(4+7)/28=11/28;
4) 1/3 + 1/8= (8+3)/24=11/24;
5) 1/3 + 1/2=(2+3)/6=5/6;
6) 1/6 + 1/7=(7+6)/42=13/42.