127/12-45/12-(203/4-193/4)

<span>127/12-45/12-(203/4-193/4) 
1)</span><span>203/4-193/4 = 10/4
2)</span><span>127/12-45/12 = 82/12
3)</span>82/12 - <span>10/4 = 52/12
Ответ:</span><span>52/12 или 4 целых 1/3</span>