Question

Find decimal expansion of 15/1600 without actual divison?

Answer 1

Answer:

It can be solve also by Factorisation method

3*5/2*2*2*2*2*25*5

Step-by-step explanation:

15/1600 can be also written as 3×5/2×2×2×2×2×2×5×5 show the denominator is in the form 2 m and 5n and so it is terminating decimal expansion

Answer 2

Answer:

2.2

Step-by-step explanation:

1600=2^6 * 5^2

15/1600=15/2^6*5^2

=15*2^4/2^2*5^2

=220/10^2

=220/100

=2.2