x = 7.7(3)
10x = 77.(3)
100x = 773.(3)
100x - 10x = 773.(3) - 77.(3)
90x = 696
x = 696/90 = 116/15 = 7 11/15
x = 7.7(3)
10x = 77.(3)
100x = 773.(3)
100x - 10x = 773.(3) - 77.(3)
90x = 696
x = 696/90 = 116/15 = 7 11/15