Question

Without actual division, check whether 77/210 has a terminating decimal expansion

Answer 1

Step-by-step explanation:factors of 210 are 7,3,2,5

since the factors are not only 2,5  so the expression has non-terminating decimal expansion

Answer 2

Answer:

if factors of denominator is of the form 2^m•5^n

then it has terminating decimal expansion

Step-by-step explanation:

210=2×5×7×3

so it has non terminating decimal expansion

hope it helps you

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