Question

the product of two numbers is -21/8 .if one number is 7/5 then find the other number.
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Answer 1

Answer:

-21/8÷7/5

21/8×5/7

-21/56

Step-by-step explanation:

hope it helps

Answer 2

Given,

The product of two numbers = -21/8

One of the numbers = 7/5

To find,

The second number.

Solution,

The second number will be -15/8.

We can easily solve this problem by following the given steps.

Let's take the second number to be x.

According to the question,

The product of two numbers = -21/8

One of the numbers = 7/5

7/5 × x = -21/8

7x/5 = -21/8

Using the cross multiplication method,

8×7x = -21×5

x = (-21×5)/(8×7) [(8×7) was in the multiplication on the left-hand side. So, it is in the division on the right-hand side.]

x = (-3×5)/8

x = -15/8

Hence, the second number is -15/8.