Question

решить выражение 2.4:8/7-0,1=

Answer 1

$2,4: frac{8}{7} -0,1=2 frac{4}{10} : frac{8}{7} - frac{1}{10} = frac{24}{10} : frac{8}{7} - frac{1}{10} = frac{12}{5} : frac{8}{7} - frac{1}{10} = frac{12}{5} cdot frac{7}{8} - frac{1}{10} \ = frac{84}{40} - frac{1}{10} =2,1-0,1=boxed{2};$