View Full Version : lolmaths
Mario
27-09-2007, 08:08 PM
yeah whats
1 and 4 sevenths
plus
3 and 2 thirds?
+rep
,Jess,
27-09-2007, 08:11 PM
5 and 5/21
whoooosh
27-09-2007, 08:11 PM
5 and 5 twenty firsts
lol
just beat me
Mexam
01-10-2007, 03:32 PM
1 4/7 + 3 2/3
Change it into a top heavy fraction:
1 4/7 = 11/7
3 2/3 = 11/3
Convert the numerators to both be equal, and do the same thing to the denominator, in this case, we shall convert the numerator to 21.
11/7 = 33/21
11/3 = 77/21
Add them, 33/21 + 77/21 = 110/21
Now change it into a proper fraction
21 x 5 = 105
110 - 105 = 5
Answer = 5 5/21
Got bored so I thought I should post an explanation on how you do it. Hope you've learnt how ;]
My answer is 5 5/21, I think not for sure, read other posts.
I tried my best thats what counts :D
Janet Snakehole
01-10-2007, 03:48 PM
Christ, how on earth did you work that out?
Im rather rubbish at maths tbh.
Gonna fail!
]:
Tristan
01-10-2007, 03:50 PM
This way seems easier than the above imo... :
1 4/7
3 2/3
3x7 = 21 (LCD)
1 4/21
3 2/21
4x3 = 12
2x7 = 14
1 12/21
3 14/21
1+3 = 4
12+14 = 26
26/21 = 1 5/21
4 + 1 = 5
Answer = 5 5/21
shiver
01-10-2007, 05:21 PM
Christ, how on earth did you work that out?
Im rather rubbish at maths tbh.
Gonna fail!
]:
you find the lowest common multiple and make it into a top heavy fraction, then you simplify it so you have a whole number and a bottom heavy fraction
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