Question

3/8×{2/3-8/15}={3/8×2/3}-{3/8×8/15}

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Answer 1

Answer:

3/8×{2/3-8/15}={3/8×2/3}-{3/8×8/15}

We know the divisibility rule for 14: If a number is exactly divisible by both 2 and 7, then number is exactly divisible by 14.

Here, the last digit is even, so 21728 is divisible by 2.

21728 is multiple of 7, so it is divisible by 7.

Therefore, 21728 is divisible by 14.

We know the divisibility rule for 14: If a number is exactly divisible by both 2 and 7, then number is exactly divisible by 14.

Here, the last digit is even, so 21728 is divisible by 2.

21728 is multiple of 7, so it is divisible by 7.

Therefore, 21728 is divisible by 14.