Question

2 целых 1/ 8-я -21/28ыхсколько будет

Answer 1

$2 \frac{1}{8} - \frac{21}{28} = \\ \frac{17}{8} - \frac{21}{28} = \\ \frac{17}{8} - \frac{3}{4} = \\ \frac{17}{8} - \frac{6}{8} = \\ \frac{17 - 6}{8} = \\ \frac{11}{8} = 1 \frac{3}{8} = 1.375$