Вправи 201 - 300 » 272
Знайдіть суму: 1) 57/8 + 63/10 = 11 + (35/40 + 12/40) = 11 + 17/40 = 127/40; 2) 63/8 + 25/9 = 8 + (27/72 + 40/72) = 867/72; 3) 18/21 + 43/14 + 22/7 = 7 + (16/42 + 9/42 + 12/42) = 737/42.
Знайдіть суму: 1) 57/8 + 63/10 = 11 + (35/40 + 12/40) = 11 + 17/40 = 127/40; 2) 63/8 + 25/9 = 8 + (27/72 + 40/72) = 867/72; 3) 18/21 + 43/14 + 22/7 = 7 + (16/42 + 9/42 + 12/42) = 737/42.