Question

Помогите -2+ 1 целая 3/4
3+(-1 целая 2/7)

Answer 1

$-2+1 frac{3}{4} =-2+ 1 frac{3*25}{4*25} =-2+1 frac{75}{100} =-2+1.75= \ =-0.25 \ \ 3+(-1 frac{2}{7} )=2 frac{7}{7} -1 frac{2}{7} =1 frac{5}{7}$