Question

What should be added to-7/20 to get -2/5

Answer 1

Answer:

-7/20+X=-2/5

X=-2/5+7/20

X=-8+7/20

X=-1/20

Step-by-step explanation:

X IS THE REQUIRED NUMBER

STEP 2:EQUATING THE NUMERICALS

STEP 3:TAKING LCM

STEP 4:SOLVING

Answer 2

Given - Numbers

Find - Number to be added

Solution - -1/20 can be added to the given number for mentioned result.

Let the number to be added, to get mentioned sum, be x. So, the mathematical expression that will form is as follows -

-7/20 + x = -2/5

Taking -7/20 from Left Hand Side to Right Hand Side.

x = -2/5 + 7/20

Taking LCM of 5 and 20. The LCM of 5 and 20 is 20.

Now performing addition to find the value of x.

x = -2*4 + 7*1/20

x = -8 + 7/20

x = -1/20

Thus, -1/20 can be added to the given number for mentioned result.