How To Add Fractions Without Finding A Common Denominator

so, now i'm going to show you how to add andsubtract fractions with different denominators. let's have a fraction three eighths plus onethird. we need to get a common denominator and the easiest way to do this is to multiplythe denominators together, that way you know that the product of them is a factor of eachof them. so if three eighths, the common denominator we're going to get is twenty-four. so we'regoing to multiply this fraction by three over

How To Add Fractions Without Finding A Common Denominator, three which is the same as one. this one toget twenty-four you multiply the top and the bottom by eight over eight which is one, aswell.so now, now that we have common denominators we just add the numerators and that's howyou add fractions with different denominators. to subtract, let's use the same example, butinstead use a subtraction sign, three eighths

minus one third. again we're going to do thesame step that we did before to get a common denominator. so this statement is equivalentto this statement.now we just subtract the numerators and nine minus eight is one and that's the answer.that's how you subtract fractions with different denominators.