John
substitute 1 as a fraction y/y and then subtract.... it is simple....
Hi all, in my workbook I am transforming a formula and I've transformed part of it to but in the workbook it as gone one step further and simplified it to but I can't quite see how it has got to that. Would someone mind helping me out please? Thanks, John
The goal is not to solve a particular problem by doing something, but to learn something by doing it in the right way:
What do you want to do? Add two fractions.
What is the definition of fraction addition?
And yet, I admit the definition obscures the principle which is the source of the definition, and you have a point; I might even go so far as to say you are right. So:
What do you want to do? Add two fractions.
How do you add fractions? Reduce them to a common denominator.
SUMMARY:
1) What is the problem?
2) What is the relevant definition OR principle?
I stand corrected. Thanks Prove It and apologies to Lexadis who did state the principle.