61. a) 9/2-23/10-16/5=45/10-23/10-32/10=-10/10=-1 b) 38/7-57/5+39/7=190/35-399/35+195/35=-14/35=-2/5 c) -723/100+57/4-401/50=-723/100+1425/100-802/100=-100/100=-1 d) -171/50+13/5-59/50=-171/50+130/50-59/50=-100/50=-2 e) -427/10-68/5+127/10=-427/10-136/10+127/10=-436/10=-43 "i" 3/5 f) -372/100-269/100+69/100=-572/100=-5 "i" 18/25 g) 29/4-75/7-9/4=203/28-300/28-63/28=-160/28=-5 "i" 5/7 h) 135/11-53/10-148/11=1350/110-583/110-1480/110=-713/110=-6 "i" 53/110 i) 18/7-17/3+2/5-18/7-1/3-2/5=-17/3-1/3=-18/3=-6 j) -5/3+5/8-6/1+2/3-1/8-1/2=-40/24+15/24-144/24+16/24-3/24-12/24=-168/24=-7 k) -28/5-11/4+25/7+3/5+7/4-15/7=-112/20-115/20+25/7+12/20+35/20-15/7=-180/20-10/7=-1260/140-200/140=-1460/140=-10 "i" 3/7 l) 12/5-36/50-6173/1000-7/5+173/1000+36/50=2400/1000-720/1000-6173/1000-1400/1000+173/1000+720/1000=-5000/1000=-5 m) -314/100+260/100-627/100+214/100+140/100+127/100=-200/100=-2 n) -720/100+142/100-1213/100+58/100-280/100+213/100=-1800/100=-18 wszystko powinno być dobrze :) pozdrawiam
