If you're not using a calculator, then it is best to convert the decimals to fractions:
17.8--> 17 and 8/10= 178/10
3.1--> 3 and 1/10= 31/10
So now it is easier to do the division: 178/10 ÷ 31/10= 178/10 × 10/31 as multiplying by the reciprocal (flipping the fraction around) is the same as dividing by the original.
So this gives 178/10 × 10/31= 1780/310=178/31=5.74
Source(s): year 9 maths and a calculator
5.7419
14.8333
178
Depends on what you are dividing by. If 1 to 16, you have not divided properly. If 17 to 31, then 179 If 32 or more, then 178.
178
178
1, 2, 89, 178.
44.5
35.6
178
0.1348
0.0056