6.375
51 divided by 8= 6.375 (or 6 and 3/8).
51.5
5.1
You can actually do this without a calculator.6 3/8 = 51/851/8 divided by 3 = 51/8 x 1/3=51/24, which simplified =17/8, which also equals 2 1/8
51/8 = 6.375
39
0.5
0.0279
51 divided 38 = 1.3421052631578947
68
12.75