Вправи 1201 - 1300 » 1267

Виконай дії: 1) (7 – 23/11) + 410/11 = (611/11 – 23/11) + 410/11 = 48/11 + 410/11 = 818/11 = 97/11 2) 121/7 – (54/7 + 36/7) = 121/7 – 810/7 = 121/7 – 93/7 = 118/7 – 93/7 = 25/7 3) (56/7 – 32/7) – (93/7 – 84/7) = 24/7 – (810/7 – 84/7)= 111/7 – 6/7 = 15/7 4) (51/4 + 33/4) – 42/17 = 84/4 - 42/17 = 9 – 42/17 = 817/17 – 42/17 = 415/17 5) (98/17 – 58/17 ) – (112/13 + 18/13) = 4 – 220/13 = 313/13 – 37/13 = 6/13 6) (193/19 – 716/19 ) – (45/8 + 33/8) = (1821/19 – 716/19) – 78/8 = 115/19 – 8 = 35/19