Verified Answer :

Multiply the numerators and the denominators to get:

(251)/(572)

10/70

This is equal to 1/710/10, or 1/71, or 1/7.  Therefore, 1/7 is the correct answer.

apologiabiology

when multiplying, multiply numberators with numberators and denomenoators with denemators so
2/5 tiems 5/7 times 1/2=(2 times 5 times 1)/(5 times 7 times 2)=(10)/(70=10/70 = 1/7
this is the correct answer

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