6k/7-(8k/9-k/3) with explaining
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According to BODMAS, we solve the brackets first
6k/7 - (8k/9 - k/3)
6k/7 - (8k/9 - 3k/9)
6k/7 - (5k/9)
Now, we have to get both denominators the same, which we do by taking the LCM of 7 & 9 = 63
6k/7 * 9/9 = 54/63
5k/9 * 7/7 = 35/63
Now, we can subtract:
(54-35)/63
=19/63
Hope this Helped!
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