4.5 Plus 3.9 Addition :

Number 1	Number 2	Answer
4.5	3.9	8.4

How to calculate 4.5 plus 3.9 ?

Let's break down the addition of 4.5 and 3.9 step by step:

   4.5      <-- Start with the rightmost column
+  3.9
---------

    Add the digits in the rightmost column:
        5 + 9 + 1 = 14
        Write down 4 in the rightmost column, carry over 1 to the next column.

   4.5
+  3.9
---------
     4


    Add the digits in the rightmost column:
        4 + 3 + 0 = 8
        Write down 8 in the rightmost column, carry over 0 to the next column.

   4.5
+  3.9
---------
     8.4

    Continue to the left:
        There are no more columns to the left.

The final result is 8.4.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
4.6	4.9	9.5	4.6 plus 4.9
4.7	8.9	13.6	4.7 plus 8.9
4.8	17.9	22.7	4.8 plus 17.9
6.6	9.7	16.3	6.6 plus 9.7
3	2.5	5.5	3 plus 2.5
5.8	9	14.8	5.8 plus 9