Вправи 201 - 300 » 223
Скоротіть: 1) (12 • 21)/(35 • 15) = (4 • 3)/(5 • 5) = 12/25; 2) (72 • 11)/(33 • 30) = (12 • 1)/(3 • 5) = 4/5; 3) (25 • 17 • 44)/(51 • 8 • 75) = (1 • 1 • 11)/(3 • 2 • 3) = 11/18; 4) (8 • 3 + 8 • 23)/(3 • 16) = (8 • 26)/(3 • 16) = 13/3; 5) (17 • 48)/(17 • 16 - 9 • 16) = (17 • 48)/(8 • 16) = 51/8; 6) (14 • 5 + 14 • 3)/(21 • 9 + 21 • 3) = (14 • 2)/(21 • 12) = (2 • 1)/(3 • 6) = 1/9.