0.049
Are you sure you mean 5.1÷104 and not 104÷5.1
If the first one is right, then perform the calculation (using a calculator)
5.1 ÷ 104 = 0.049038
Rounded to the nearest tenth, t is 0.0 (That might surprise you but here's why)
Look at the 2nd number after the decimal point. If it is 5 or more, then you round up the 1st number after the decimal point. e.g. 5.3698 would become 5.4 rounded to the nearest tenth because the 6 is more than 5.
If the 2nd number after the decimal point is under 5, then you would round down. e.g. 5.3487 would become 5.3 because 4 is less than 5.
Now returning to your question, the 2nd number after the decimal point is 4 which is less than 5 so you have to round down to 0.0
multiply or divide
4.4, to the nearest tenth.
It is already rounded to the nearest tenth.
158.097 to nearest tenth = 158.1
73.19, to the nearest tenth, is 73.2
0.049
20.3922
0.4969
345.00 is already at the nearest tenth.
46.7 divided by 3.15 and round to the nearest tenth
0.089
0.6542
multiply or divide
1.2494
.1
6.36
round 48.6 to the nearest tenth