Question

the product of 5 upon 7 and the additive inverse of 21 upon 15 is -
please give me right answer ​

Answer 1

Answer:

(5/7) × (-21/15) = (-3/5)

Step-by-step explanation:

We need to find,

The product of (5/7) and the additive inverse of (21/15).

Product is name given to a multiplication function,

So product of these numbers simply means "to multiply".

Now,

Additive inverse of a number x is the number that, when added to x, yields zero.

For ex:-

Additive inverse of 2 is (-2)

2 + (-2) = 0

So,

To check if we are correct we can simply add and if we get a zero then it is its additive inverse.

Now,

Let Additive inverse of (21/15) = x

Adding,

(21/15) + x = 0

x = (-21/15)

Hence,

Additive inverse of (21/15) = (-21/15)

Now coming back to our Question,

We have to find,

(5/7) × (-21/15)

Cancelling the common factors,

= (-3/5)

Hence,

(5/7) × (-21/15) = (-3/5)

Hope it helped and believing you understood it........All the best