Question

x+(9 4/7 - 4 3/7)=(11 7/12- 3 1/4)

Answer 1

$x + (9 frac{4}{7} - 4 frac{3}{7}) = (11 frac{7}{12} - 3 frac{1}{4} ) \ \ x + 5 frac{1}{7} = 8 frac{1}{3} \ \ x = 8 frac{1}{3} - 5 frac{1}{7} \ \ x = 3 frac{4}{21}$