Завдання 201 - 300 » 288

Виконай віднімання: 1) 51/6 – 21/3 = 47/6 – 21/3 = 2(7 - 2)/6 = 25/6; 2) 173/10 – 53/5 = 1613/10 – 53/5 = 11(13 - 6)/10 = 117/10; 3) 151/3 – 43/4 = 144/3 – 43/4 = 10(16 - 9)/12 = 107/12; 4) 75/6 – 27/8 = 611/6 – 27/8 = 4(44 - 21)/24 = 423/24; 5) 77/15 – 511/20 = 622/15 – 511/20 = 1(88 - 33)/60 = 155/60 = 111/12; 6) 24/35 – 111/14 = 139/35 – 111/14 = (78 - 55)/70 = 23/70; 7) 72/33 – 67/22 = 635/33 – 67/22 = (70 - 21)/66 = 49/66; 8) 103/20 – 817/25 = 923/20 – 817/25 = 1(115 - 68)/100 = 147/100.