Question

Without actual division, Check whether 21/280 is a terminating or nonterminating decimal? If it is terminating, write the number of places in its decimal part.Justify

Answer 1

Step-by-step explanation:

280 = 2 x 2 x2 x 5 x7

prime factors of 280 are not in the form 2^n5^m

therefore given ratuonal is not terminating rational, i. e. nonterminating decimal

Answer 2

21/280

factor of 2×2×2×5×7

factor of 280 have not in the form of

2m×5n

so, 21/280 is non terminating