Write the name of the next homologue of $CH_{3}OH$ and $HCOOH$.

(N/A) homologous series is a group of organic compounds having the same functional group and similar chemical properties,where each successive member differs by a $CH_{2}$ unit.
$1$. For $CH_{3}OH$ (Methanol),the next homologue is obtained by adding a $CH_{2}$ group,which results in $C_{2}H_{5}OH$ (Ethanol).
$2$. For $HCOOH$ (Methanoic acid),the next homologue is obtained by adding a $CH_{2}$ group,which results in $CH_{3}COOH$ (Ethanoic acid).