7.7 Plus 13.8 Addition :

Number 1	Number 2	Answer
7.7	13.8	21.5

How to calculate 7.7 plus 13.8 ?

Let's break down the addition of 07.7 and 13.8 step by step:

   07.7      <-- Start with the rightmost column
+  13.8
---------

    Add the digits in the rightmost column:
        7 + 8 + 1 = 15
        Write down 5 in the rightmost column, carry over 1 to the next column.

   07.7
+  13.8
---------
     5


    Add the digits in the rightmost column:
        7 + 3 + 1 = 11
        Write down 1 in the rightmost column, carry over 1 to the next column.

   07.7
+  13.8
---------
     1.5


    Add the digits in the rightmost column:
        0 + 1 + 0 = 2
        Write down 2 in the rightmost column, carry over 0 to the next column.

   07.7
+  13.8
---------
     21.5

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

The final result is 21.5.

Similar Summation Operations :

Number 1	Number 2	ANSWER:	HOW TO ?
7.8	15.8	23.6	7.8 plus 15.8
7.9	20.8	28.7	7.9 plus 20.8
8	26.8	34.8	8 plus 26.8
1.3	9.3	10.6	1.3 plus 9.3
3.9	6.8	10.7	3.9 plus 6.8
8.8	4.4	13.2	8.8 plus 4.4