colin, dave and emma share some money. colin gets 3/(10) of the money. emma and dave share the rest of the money in the ratio 3:2. what is dave's share of the money?
+118724 I like you manners 
Collin gets 3/10 so there is 7/10 left
Dave gets 2 shares out of 5 shares of what is left.
this means that he gets 2 fifths of 7 tenths
$$\left({\frac{{\mathtt{2}}}{{\mathtt{5}}}}\right){\mathtt{\,\times\,}}\left({\frac{{\mathtt{7}}}{{\mathtt{10}}}}\right) = {\frac{{\mathtt{7}}}{{\mathtt{25}}}} = {\mathtt{0.28}}$$
Anyway Dave ends up it 7 twenty fifths or 28% of the entire amount.
+118724 I like you manners
Collin gets 3/10 so there is 7/10 left
Dave gets 2 shares out of 5 shares of what is left.
this means that he gets 2 fifths of 7 tenths
$$\left({\frac{{\mathtt{2}}}{{\mathtt{5}}}}\right){\mathtt{\,\times\,}}\left({\frac{{\mathtt{7}}}{{\mathtt{10}}}}\right) = {\frac{{\mathtt{7}}}{{\mathtt{25}}}} = {\mathtt{0.28}}$$
Anyway Dave ends up it 7 twenty fifths or 28% of the entire amount.
