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Mathematics 19 Online
OpenStudy (anonymous):

How do i subtract fractions , can someone break it down to me please?

OpenStudy (anonymous):

sure do you have a specific problem?

OpenStudy (anonymous):

\[\frac{a}{b}-\frac{c}{d}=\frac{ad-bc}{ad}\] and

OpenStudy (anonymous):

that is how i would do it if the denominators are different

OpenStudy (anonymous):

No , because i forgot how to do it . And I'm going in to high school and i forgot what i learned . No i will be here forever , i just need someone to break it down for me . Lmaoo

OpenStudy (anonymous):

if they are the same just subtract in the numerator, leave the denominator alone

OpenStudy (anonymous):

for example \[\frac{2}{5}-\frac{1}{7}=\frac{2\times 7-1\times 5}{5\times 7}\]

OpenStudy (anonymous):

you still have to compute. i would get \[\frac{14-5}{35}=\frac{9}{35}\]

OpenStudy (anonymous):

post one on a new thread and you will get lots of answers

OpenStudy (anonymous):

so a fraction has both a numer ator and a denomianter. the numerator is the top part of the fraction and the denominator is the bottom part...whatever the probeem is (subtraction or addition) you need to make the denominators of both fractions the same by multiplying each fractions numberator and demominator by a number that makes the denomiators equal ...heres an example ..if you have5/8 - 3/4 ..then to make both denomiatros the same you multiply the 3 of the 3/4 fraction by 2 and the 4 of the 3/4 fraction by two...then you finnish solving the problem by subtraction 6 from 5 and your answer will be -1/4

OpenStudy (anonymous):

i really don't know

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