Respuesta :

devishri1977

Answer:

None of the choices.

Step-by-step explanation:

Fraction subtraction:

  • Convert mixed fraction to improper fraction.
  • Find the LCM of the denomiators.
  • Find equivalent fractions.
  • Now subtract and convert the improper fraction to mixed fraction.

         [tex]3\dfrac{3}{7}=\dfrac{24}{7}\\\\2\dfrac{1}{5}=\dfrac{11}{5}\\\\\\\text{LCM of 7 and 5 is 35}\\\\\dfrac{24*5}{7*5}=\dfrac{120}{35}\\\\\dfrac{11*7}{5*7}=\dfrac{77}{35}\\\\3\dfrac{3}{7}-2\dfrac{1}{5}=\dfrac{24}{7}-\dfrac{11}{5}\\[/tex]

                       [tex]\sf =\dfrac{120-77}{35}\\\\=\dfrac{43}{35}\\\\=1\dfrac{8}{35}[/tex]

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