Question

Short division method and hcf of 7,21.

Answer 1

Step-by-step explanation:

1. Find highest common factor (H.C.F) of 18 and 30 by using division method.

Solution:

To find Highest Common Factor by using Division Method

3Save

Step I:

Here we need to divide 30 by 18.

[Divide the larger number by the smaller one].

Step II:

The first divisor is 18 and the remainder is 12, so we need to divide 18 by 12.

[Divide the first divisor by the first remainder].

Step III:

Now divide the second divisor 12 by the second remainder 6.

[Divide the second divisor by the second remainder].

Step IV:

The remainder becomes 0.

Step V:

Therefore, highest common factor = 6.

[The last divisor is the required highest common factor (H.C.F) of the given numbers].

Answer 2

Answer:

answer is 3 by short division method

Step-by-step explanation:

21÷7=3