7/9 is greater because if you divide the fraction you will get 0.77777777...
(Which will go on forever)
compare:
(< or >)
0.7 ? 0.6
Well, by looking at both of them, you can easily tell that 0.7 is greater and 0.7=7/9, therefore, 7/9 is greater
11: 4,874 > 4,784 > 4,687
12: 8.09 > 8.057 > 8.023
13: 15.820 > 15.280 > 15.000
14: 43,628 > 40,628 > 34,628
15: 395.050 > 395.009 > 395.005
You can do it if you believe in your self!