alaw8705
alaw8705 alaw8705
  • 29-09-2020
  • Mathematics
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what is the lcd of 1/3 and 3/7

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macybaurle032308 macybaurle032308
  • 30-09-2020

Answer:

The least common denominator is 21.

Step-by-step explanation:

First, you must find the least common factor of the two:

3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30

7: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70

Second, you must increase the fractions:

[tex]\frac{1}{3}[/tex] × [tex]\frac{7}{7}[/tex] = [tex]\frac{7}{21}[/tex]           [tex]\frac{3}{7}[/tex] × [tex]\frac{3}{3}[/tex] = [tex]\frac{9}{21}[/tex]

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