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BBB 2021 - Primary 6 - Preliminary Round Question 5

BBB · BBB 2021 - Primary 6 - Preliminary Round

Question 5

Find the value of $\left(\frac34+\frac38+\frac3{16}+\frac3{32}+\frac3{64}\right)\div\left(\frac47+\frac4{14}+\frac4{28}+\frac4{56}+\frac4{112}\right)$.
  1. $\frac{21}{16}$
  2. $\frac37$
  3. $\frac7{16}$
  4. $\frac{16}{21}$