Turn it improper 6 2/5 = 32/5
3 1/6 = 19/6
Multiply across
19/6*32/5 = 508/30 reduces to 254/15 hope this helps
The rules for multiplying and dividing decimals are;
Multiplying decimals:
- Multiply as usual, ignoring the decimals.
- Determine the total number of digits behind the original numbers' decimal points.
- Place the same number of digits behind the decimal point in the product.
Dividing Decimals:
-If the divisor is not a whole number, move decimal point to right to make it a whole number and move decimal point in dividend the same number of places.
- Divide as usual. ...
- Put decimal point directly above decimal point in the dividend.
- Check your answer
Can I ask u to repeat your question you need answered.
Answer: Probability of getting one volcano in the world on which to conduct an extensive study is 
Step-by-step explanation:
Since we have given that
Number of cinder cone volcanoes = 13
Number of shield volcanoes = 18
Number of stratovolcanoes = 6
Total number of volcanoes is given by

So, Probability of selecting one volcano in the world on which to conduct an extensive study is given by

Hence, Probability of getting one volcano in the world on which to conduct an extensive study is 