Сравните дроби: 3 1/2 и 4 1/3= 4 3/4 и 4

1) 3 1/2 = (3 * 2 + 1)/2 = 7/2 = 21/6;

4 1/3 =(4 * 3 + 1)/3 = 13/3 = 26/6;

21 lt; 26;

Ответ: 3 1/2 lt; 4 1/3.

2) 4 3/4 = (4 * 4 + 3)/4 = 19/4;

4 1/4 = (4 * 4 + 1)/4 = 17/4;

19 gt; 17;

Ответ: 4 3/4 gt; 4 1/4.

3) 5 1/4 = (5 * 4 + 1)/4 = 21/4 = (21 * 3)/12 = 63/12;

5 1/3=(5 * 3 + 1)/3 = 16/3 = (16 * 4)/12 = 64/12;

63 lt; 64;

Ответ: 5 1/4 lt; 5 1/3.

4) 8 2/3 = (8 * 3 + 2)/3 = 26/3 = (26 * 5)/15 = 130/15;

8 2/5 = (8 * 5 + 2)/5 = 42/5 = (42 * 3)/15 = 126/15;

130 gt; 126;

Ответ: 8 2/3 gt; 8 2/5.