529 ПОЖАЛУЙСТА ПОМОГИТЕ
1) 5 19/34 + 80 1/2 = 85+19/34+1/2=85+(19+17)/34= 85+36/34=85+1+2/34=86 1/17 2) 6 3/35 + 3 59/70 = 9+6/70+59/70=9 65/70 3) 47 211/360 + 82 83/180 = 129+211/360+166/360= 129+377/360=130 17/360 4) 92 19/240 + 5 109/120 = 97+19/240+218/240=97 237/240
Забыл. 2) 65/70=13/14