KawaiiPotatoess
KawaiiPotatoess KawaiiPotatoess
  • 25-04-2017
  • Mathematics
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Help me for number 20 and 21 and also show work

Help me for number 20 and 21 and also show work class=

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irspow
irspow irspow
  • 25-04-2017
32.4*0.69=22.149

...

45=3*3*5,  63=3*3*7  The greatest common factor is the product of shared primes of the numbers prime factorization.  In this case 3*3=9 is the product of shared primes so the greatest common factor is 9
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