Question

1.507x12.9 explain fully ​

Answer 1

Answer:

19.4403

Hope it helps you :)

Answer 2

Answer:

1.507 x 12.9 = 19.4403

For making the sum easy, just remove the decimal points and simply multiply as you do before.

I'll give you a simple number as an example.

1.2 x 1.4 =

Now, what I'll do is, remove the decimal points.

When we remove the decimal points, it becomes as 12 x 14. Now, do normal multiplication. 12 x 14 = 168.

Now, don't forget putting the decimal points in the product.

In this decimal number, 1.2, how many decimal points are there? Only 1.

In this decimal number, 1.4, how many decimal points are there? Only 1.

Now, add 1 + 1 = 2.

I got this 1 and another 1 by how many decimal points did 1.2 and 1.4 had.

So, when we multiplied 14 x 12, we got 168. When we added 1 + 1, we got 2.

So, the answer was 168, put 2 decimal points after this number (168). Two decimal points means, jump two places on the extreme right side of the digit. So, when we jump two places, the decimal point lies between 1 and 6. Therefore, when we multiply 1.4 x 1.2, we get the answer as 1.68

Do the same for your question as well. You'll get the same answer that I mentioned in the first line. (1.507 x 12.9 = 19.4403)

(Note: 1.507 has 3 decimal points and 12.9 has 1 decimal point, so, when we add 3 + 1 = 4. So, jump 4 places and that's why the answer has the decimal point after 4 places.

Thanks, hope it helped you.