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If your denominators are different, then you can not add them. To add the denominators you need to change them so they are alike. In order to do this, you must multiply by the denominators to get the least common multiple (LCM)
Example:
5/6 + 7/8=
The LCM of these two numbers is 24. Now multiply the denominators until you reach 24
5/(6x4) + 7/(8x3)=
Now multiply the same number to the numerator
(5x4)/(6x4) + (7x3)/(8x3)= 20/24 + 21/24
Now add the numerators and keep the same denominator
20/24 +21/24= 41/24 (Improper Fraction) or 1 and 17/24 (Mixed Number)
Hint: Always check to see if you can simplify it. In this case, it doesn't
6/8 simplifies to 3/4
What else can I help you with?
How does using fraction strips with like denominators make it possible to add fractions with unlike denominators?
because they are the same number
How do you add fraction with common denominators?
To add fractions w/ common denominators, like 2/5 + 1/5, you must ONLY add the numerator, or the top numeral.
How using fraction strips with like denominators make it possible to add fraction with unlike denominators?
You need to answer this question because your teacher is looking for your critical thinking skills and how well you understood the lesson.
What must a fraction have before we add before we can add them?
They must have the same denominators.
If the denominators are different do you add them?
No. Convert them to like denominators and add the numerators.
How do you add a fraction if there is a connection between the denominators?
By only adding the two numeraters.
Does adding numerators and denominators work in fraction addition?
To add fractions, you cannot simply add the numberators and add the denominators. To add fractions, they must first have the same denominator. Once they have the same denominator, you can then simply add the numerators.
What do you need to do before you add a fraction?
You need to find the least common multiple of their denominators.
Why cant you add the numerators in a fraction problem?
You can, but unless the denominators are the same, you won't get the right answer.
Explain how using fraction strips with like denominators make it possible to add fractions with unlike denominators?
You need to answer this question because your teacher is looking for your critical thinking skills and how well you understood the lesson.
How do you add and subtract unlike denominators?
you make them have like denominators by multiplying so many times that they have the same denominators or you can make them have like denominators by multiplying the two
How do you add mixed fractions with another mixed fraction?
You convert them both to improper fractions by multiplying the denominators by the whole number and then adding the numerator to it. This number goes in the numerator and the denominator stays the same. Then you do this for the other fraction, making sure that the denominators of each fraction are equivalent. Then add the fractions as normal.
