Question

помогите
1) x-2 1/3=5 2/7
2) z-1 3/4=2 7/12
3) y-10 7/12=3 1/6
заранее спасибо

Answer 1

$x-2 frac{1}{3} =5 frac{2}{7} \ \ x =5 frac{2}{7} -2 frac{1}{3} \ \ x =5 frac{2*3}{21} -2 frac{1*7}{21} \ \ x=5 frac{6}{21} -2 frac{7}{21} \ \ x=4 frac{27}{21} -2 frac{7}{21} \ \x=2 frac{20}{21}$

$z - 1 frac{3}{4} =2 frac{7}{12} \ \ z=2 frac{7}{12}-1 frac{3}{4} \ \ z=2 frac{7}{12}-1 frac{9}{12} \ \ z=1 frac{19}{12} -1 frac{9}{12} \ \ z=frac{10}{12} \ \ z= frac{5}{6}$

$y-10 frac{7}{12} =3 frac{1}{6} \ \ y=3 frac{1}{6}-10 frac{7}{12} \ \ y=3frac{2}{12}-10 frac{7}{12} \ \ y=2frac{14}{12}-10frac{7}{12} \ \ y=(-8 frac{7}{12} )$