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2 4/5
Division of fractions is easy - just turn the second one upside down and multiply.So 2 / 5 divided by 4 / 7is equivalent to 2 / 5 times 7 / 4which is equivalent to (2 times 7) / (5 times 4)= 14 / 20 = 7 / 10
2/5 * 4/7 just multiply through = 8/35
No because 4 is not a prime number. You would need to find the factors of 4 (2x2). 5, 7, 2 and 2 are prime numbers.
(3/4)(16/21)(7/10)=(2/5) or 2 over 5, or 2 fifths.