If all the terms in an equation have same units, is it necessary that they have same dimensions? If all the terms in an equation have same dimensions, is it necessary that they have same units?
All the terms in an equation must have the same dimension and same unit for proper addition and subtraction or to equate them you have to convert all the term in to one single unit
One can write as 5metre +3cm =5030mm but to verify the compute you must convert them all into one unit as in
5000 mm +30 mm=5030 mm