Округлите дроби 5_110, 28_36, 21_49, 200_700, 56_63, 48_72, 55_60, 26_30

Округлим дроби: 

1) 5/110 = 5/(5 * 22) = 1/(1 * 22) = 1/22 = 0.046; 

2) 28/36 = (4 * 7)/(4 * 9) = (1 * 7)/(1 * 9) = 7/9 = 0.78; 

3) 21/49 = (7 * 3)/(7 * 7) = (1 * 3)/(1 * 7) = 3/7 = 0.43; 

4) 200/700 = (2 * 100)/(7 * 100) = (2 * 1)/(7 * 1) = 2/7 = 0.29; 

5) 56/63 = (7 * 8)/(7 * 9) = (1 * 8)/(1 * 9) = 8/9 = 0.89; 

6) 48/72 = (8 * 6)/(8 * 9) = (1 * 6)/(1 * 9) = 6/9 = 2 * 3/(3 * 3) = 2 * 1/)3 * 1) = 2/3 = 0.67; 

7) 55/60 = (5 * 11)/(5 * 12) = (5 * 1)/(6 * 1) = 5/6 = 0.83; 

8) 26/30 = (13 * 2)/(2 * 15) = (13 * 1)/(1 * 15) = 13/15 = 0.87.