Fractions in PHP
PHP also supports decimal fractions. In them, the integer and fractional parts are separated by a dot. See the example:
<?php
$a = 0.5;
echo $a; // outputs 0.5
?>
See another example:
<?php
$a = 0.5 + 0.5;
echo $a; // outputs 1
?>
Store the number 1.5 in the variable $a,
and the number 0.75 in the variable $b.
Find the sum of the values of these variables and
output it to the screen.
