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Sagot :
When you want to add fractions with different denominators-which are the bottom numbers- you have to find the lowest numbers that you can multiply to go into both numbers. I know that you can multiply 8×3 to get 24. And that I can multiply 12×2 to get 24. So 24 would be what we change the denominators to.
But we can't just change the denominators. I have to change the numerators, too. Since I multiplied 8×3, I have to multiply the numerator by 3, also. 3×3=9. The new fraction is [tex] \frac{9}{24} [/tex].
Do the same thing to the other fraction. But we will multiply by 2. 1×2=2. So now we have [tex] \frac{2}{24} [/tex]. We can now add.
[tex] \frac{9}{24} [/tex]+[tex] \frac{2}{24} [/tex] Only add the top numbers. We have [tex] \frac{11}{24} [/tex]That fraction cannot be reduced, so [tex] \frac{11}{24} [/tex] is the final answer.
But we can't just change the denominators. I have to change the numerators, too. Since I multiplied 8×3, I have to multiply the numerator by 3, also. 3×3=9. The new fraction is [tex] \frac{9}{24} [/tex].
Do the same thing to the other fraction. But we will multiply by 2. 1×2=2. So now we have [tex] \frac{2}{24} [/tex]. We can now add.
[tex] \frac{9}{24} [/tex]+[tex] \frac{2}{24} [/tex] Only add the top numbers. We have [tex] \frac{11}{24} [/tex]That fraction cannot be reduced, so [tex] \frac{11}{24} [/tex] is the final answer.
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