3.9 / 0.05
When dividing by decimals, shift the decimal point so many places as to make the denominator a whole number. You MUST also shift the same number places in the numerator.
Hence
Shifting 2 decimal places we hace
390.00 / 5
Now it is a matter of dividing 5 into 390
390/5 = 78 The answer. !!!!
0.2797
0.005
5190
507 divided by 39 is 13.
19 divided by 39 = 0.48717948717948717
39 divided 3 = 13
0.0741
0.005
15000 ÷ 12 ÷ 39 = (15000 ÷ 12) ÷ 39 = 322/39 ≈ 32.05
39
39
0.0004