1(целая) 1/4 + 5/12 : (1/3 * 2(целая) 1/2 - 7/8)

[latex]1 \frac{1}{4} + \frac{5}{12} *( \frac{1}{3} *2 \frac{1}{2} - \frac{7}{8} )= \\ \\ 1) \frac{1}{3} * \frac{5}{2} = \frac{5}{6} \\ \\ \frac{5}{6} - \frac{7}{8} = \frac{20}{24} - \frac{21}{24} =- \frac{1}{24} \\ \\ 1 \frac{1}{4} - \frac{1}{24} = \frac{5}{4} - \frac{1}{24} = \\ \\ \frac{30}{24} - \frac{1}{24} = \frac{29}{24} =1 \frac{5}{24} [/latex]