Пошаговое объяснение:
1)
[tex]2 \frac{3}{4} - 1 \frac{1}{2} = \frac{11}{4} - \frac{3}{2} = \frac{11}{4} - \frac{6}{4} = \frac{5}{4} [/tex]
2)
[tex] \frac{5}{4} - 3 \frac{5}{6} = \frac{5}{4} - \frac{23}{6} = \frac{30}{24} - \frac{92}{24} = - \frac{58}{24} = - 2 \frac{7}{12} [/tex]
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Answers & Comments
Пошаговое объяснение:
1)
[tex]2 \frac{3}{4} - 1 \frac{1}{2} = \frac{11}{4} - \frac{3}{2} = \frac{11}{4} - \frac{6}{4} = \frac{5}{4} [/tex]
2)
[tex] \frac{5}{4} - 3 \frac{5}{6} = \frac{5}{4} - \frac{23}{6} = \frac{30}{24} - \frac{92}{24} = - \frac{58}{24} = - 2 \frac{7}{12} [/tex]