Correct option is CGiven:46,779,1954,5484\frac{4}{6} , \frac{7}{79},\frac{19}{54},\frac{54}{84}64,797,5419,8454Solution:46\frac{4}{6}64≈0.67\approx 0.67≈0.67779\frac{7}{79}797≈0.09\approx 0.09≈0.091954\frac{19}{54} 5419≈0.35\approx 0.35≈0.355484≈0.64\frac{54}{84}\approx 0.648454≈0.64Largest fraction is 46\frac{4}{6}64.Option (C) is right.