1 and 8 tenths as a decimal is 1.8
.8
8.4
2,000.8
8.4
0.8
8 and 4 tents = 8.4 in decimal.
8.4 is 8 and 4/10
1 and 8/10 = 1.8
20 and 8 tenths and 19 hundredths written as a decimal is 20 + 0.8 + 0.19 = 20.99
0.38
The answer is that 8 4/10 as a decimal is 8.4.