2 Выполните вычитание: a) 103 - 9; 4 32 б) 4-3; 17 17 3 в) 35 - 35; 67 2 67 23 25 г) 56 - 43.

a) $$10\frac{3}{4} - 9 = 1\frac{3}{4}$$

б) $$4\frac{3}{17} - 3\frac{2}{17} = (4-3) + (\frac{3}{17} - \frac{2}{17}) = 1 + \frac{1}{17} = 1\frac{1}{17}$$

в) $$35\frac{3}{67} - 35\frac{2}{67} = (35-35) + (\frac{3}{67} - \frac{2}{67}) = 0 + \frac{1}{67} = \frac{1}{67}$$

г) $$56\frac{23}{87} - 43\frac{25}{87} = (56-43) + (\frac{23}{87} - \frac{25}{87}) = 13 - \frac{2}{87} = 12 + \frac{87}{87} - \frac{2}{87} = 12\frac{85}{87}$$

Ответ: a) $$1\frac{3}{4}$$, б) $$1\frac{1}{17}$$, в) $$\frac{1}{67}$$, г) $$12\frac{85}{87}$$