Seudónimo Seudónimo
  • 01-03-2016
  • Mathematics
contestada

wich is bigger 7/8 or 8/9

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apologiabiology
apologiabiology apologiabiology
  • 01-03-2016
ok so we need the bottom number to be the same to compare
remember that when x=x, x/x=1 so
9/9=1
if you multiply anything by 1 it is the same
to change the bottom number you have the multipy the whole fraction by 1

so we have
7/8 and 8/9
we need to make 8 and 9 into a common number
jus muitply 8 by 9 and 9 by 8
so
7/8 times 9/9=63/72
8/9 times 8/8=64/72

so we have
7/8 vs 8/9
63/72 vs 64/72

63<64
7/8<8/9

8/9 is bigger
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