Can't install php7.4-bcmath on Ubuntu 18

Question

There is a server on Ubuntu 18. Worth nginx and php 7.4 I need to install php7.4-bcmath

Command: "sudo apt-get install php7.4-bcmath" keeps giving error: Reading package lists... Done Building dependency tree Reading state information... Done E: Unable to locate package php7.4-bcmath E: Couldn't find any package by glob 'php7.4-bcmath' E: Couldn't find any package by regex 'php7.4-bcmath'

Before doing the following commands: sudo apt-get update sudo apt -y install software-properties-common sudo add-apt-repository ppa:ondrej/php sudo apt-get update

Does not help. If you try the command: sudo apt-get install php-bcmath Version 7.2 will be installed. We don't need this.