You question is a little unclear.
I think you mean either
1) March 2010 to August 2010
or
2) March 2010 to August 2014
-------------
1) If this is what you meant, just count out the months.
January, Febuary, March, April, May, June, July, August, September, October, November, December.
So 5 months.
----------------
2) If this is what you meant, first count out the months like question 1), then add that to 4 years. There is 12 months in a year.
4*12 will then tell us the number of months in 4 years
= 48
Add that to the 5 months
48+5=53
In this case it would be 53 months.
You question is a little unclear.
I think you mean either
1) March 2010 to August 2010
or
2) March 2010 to August 2014
-------------
1) If this is what you meant, just count out the months.
January, Febuary, March, April, May, June, July, August, September, October, November, December.
So 5 months.
----------------
2) If this is what you meant, first count out the months like question 1), then add that to 4 years. There is 12 months in a year.
4*12 will then tell us the number of months in 4 years
= 48
Add that to the 5 months
48+5=53
In this case it would be 53 months.