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Mathematics 7 Online
OpenStudy (anonymous):

7/9 - 1/10

OpenStudy (anonymous):

now you tell me what are we supposed to do here ^_^

OpenStudy (anonymous):

this one is alil more challenging

OpenStudy (anonymous):

alright, first get them to have the same denominator ^_^

OpenStudy (anonymous):

looks like you need common denominators

OpenStudy (anonymous):

madest pickup line^ , had a little laugh for no real reason :P

OpenStudy (anonymous):

ll

OpenStudy (anonymous):

so what will you do now rsan? ^_^

OpenStudy (anonymous):

i have no clue im stuck

OpenStudy (anonymous):

we need to get the fractions to have the same denominators, so what to do? do we multiply both fractions or only one?

OpenStudy (anonymous):

both

OpenStudy (anonymous):

excellent now which are you going to multiply with 10 and which are you going to multiply with 9?

OpenStudy (anonymous):

thinking...............................

OpenStudy (anonymous):

here, the question is : \[\frac{7}{9} - \frac{1}{10}\] hmm what to do?

OpenStudy (anonymous):

how will i get 9 into an even number like 10 can get even numbers

OpenStudy (anonymous):

:) all you have to do is multiply the first fraction with 10 and the other fraction with 9 to get the same denominator which is = 90 ^_^

OpenStudy (anonymous):

wow i feel blind for not cathing that lol

OpenStudy (anonymous):

so after that we'll have :\[\frac{10}{10} \times \frac{7}{9} - \frac{1}{10} \times \frac{9}{9} = \frac{70 - 9}{90}\] continue ^_^

OpenStudy (anonymous):

dw, it happens ^_^

OpenStudy (anonymous):

61/90

OpenStudy (anonymous):

good boy ^_^

OpenStudy (anonymous):

how can i reduce that?

OpenStudy (anonymous):

now I have a questin for you :)

OpenStudy (anonymous):

it cannot be reduced, try :)

OpenStudy (anonymous):

\[\frac{2}{13} - \frac{1}{2}\]? what to do ^_^? think and give me the answer

OpenStudy (anonymous):

sweet i tried it.

OpenStudy (anonymous):

so , can it be reduced?

OpenStudy (anonymous):

now try the question I gave you, remember the 3 rules: 1) Get the same denominators 2) calculate 3) simplify, if can :)

OpenStudy (anonymous):

i got 9/26

OpenStudy (anonymous):

so far lol

OpenStudy (anonymous):

excellent, but becareful of the sign

OpenStudy (anonymous):

is it 9/26 or -9/26?

OpenStudy (anonymous):

-9/26

OpenStudy (anonymous):

good, because?

OpenStudy (anonymous):

4-13 is -9

OpenStudy (anonymous):

^_^ well done

OpenStudy (anonymous):

=]

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