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That is not correct.
both denominators must be the same.
when we add and subtract they must be the same, multiplying you do not.
you must find the lowest common multiple ( LCM of 8 and 7
so would it be 1/7?
you can only add the top numbers when the denominator is the same
nope that isn't correct.
LCM = 7*8 = 56
Lets find the LCD(Least Common Denominator) HINT: If we cannot find a number lower, we usually multiply the bottom numbers, so in this case 7*8 =?
cwrw trying to steal my Q!
now you need to convert 3/8 to something over 56
so 61/56 ? Im lost
ok - sorry - you carry on
Do you undertstand how you got that answer though?
Yes and no? 56yes but no to sure on the 61
So if you divide 25/6 by 5 is it 5/6?
well actually I wouldn't say that.
normally the trick when you have multiple denoms you do this. A/B/C = A *C/B
Sorry I said yes, when I was checking my answer it seemed to give me that, and the other one I thought.
So 25 / 6 / 5 would be 25 * 5/6
so would it be 25/30?
What is 25*5
http://www.wolframalpha.com/input/?i=%2825%29%2F%286%2F5%29 Depending how you put it into Wolfram you could get 5/6, though I'm not 100% sure why..
3/8 + 5/7 (7/7)*(3/8) +5/7 21/56 +5/7 21/56 + (5/7)*(8/8) 21/56 + 40/56 (21+40)/56 61/56 So 3/8 + 5/7 = 61/56
haha not that part :P. 25/6/5 :)