anonymous
  • anonymous
add and simplify 4d 9d ------- + ------- 5d -10 10d -20
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
need a common denominator 5d - 10 factors into 5(d - 2) 10d - 20 factors into 10(d - 2) 10(d - 2) can be written as 2 * 5 * (d - 2) So... common denominator is 2 * 5 * (d - 2) or 10(d - 2) = 10d - 20 So to make 5d - 10 into 10d - 20, you would multiply by 2 so take the top and bottom times 2 on the first fraction. 8d 9d -------- + -------- 10d - 20 10d - 20 17d ------- 10d - 20
anonymous
  • anonymous
Thanks

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