How do I add and subtract fractions with unlike denominators?

Question

hoblos · Answer

you change the denominators

ragingsquirrel · Answer

I'll write up a example.

anonymous · Answer

least common multiple you change the denominators so they are equil when you do this you also must change the numerator however 

EX
1/2-1/3 the least common multiple is 6 so it becomes 3/6-2/6

anonymous · Answer

by making the denominators equal by multiplying

ragingsquirrel · Answer

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2/8 Could be divided into 2. Making it 1/4.

ragingsquirrel · Answer

So the answer to my example would be 2/4.

anonymous · Answer

NO U DONT HAVE TO MULTIPLY THAT CAN MAKE IT A LOT HARDER THAN IT NEEDS TO BE
for example if you have 5/6 + 3/12
you can just multiply both the numerator and denominator of 5/6 by 2 and you get 10/12+3/12

ragingsquirrel · Answer

Hinkey, that IS multiplying...