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For the denominator, multiply the denominators together.
For the numerator, subtract the second numerator multiplied by the first denominator from the first numerator multiplied by the second denominator:
a/b - p/q = (a x q - b x p)/b x q
eg:
6/7 - 3/4 = (6 x 4 - 7 x 3)/7 x 4
= (24 - 21)/28
= 3/28
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What do adding and subtracting mixed numbers means?
To combine the fractions or subtract the fractions. Same method with mixed numbers.
How do you add and subtract fractions with the same denominator?
it stay the same when you subtract fractions and when you add fractions.
Why does the butterfly method work in math?
Oh, dude, the butterfly method, or the method of cross-multiplication, works in math because it's just a fancy way of multiplying fractions. When you're multiplying fractions, you're essentially multiplying the numerators together and the denominators together. So, the butterfly method is just a cool visual way to do that. It's like math's way of saying, "Hey, let's make multiplying fractions a bit more interesting."
How do you subtract bigger fractions from smaller fractions?
You don't
How do you subtract fractions and mixed numbers?
subtract a mixed fractor for a fifth grader
