Question

what number should be subtracted from 2/5 to get 3/4​

Answer 1

Answer:

-7/20

Step-by-step explanation:

Let the number be x

Now, 2/5 - x = 3/4

⇒ -x = 3/4 - 2/5

⇒ -x = (15-8)/20

⇒ -x = 7/20

⇒ x = - 7/20

Check:

Putting x = -7/20 in the equation

2/5 - (-7/20) = 3/4

⇒ 2/5 + 7/20 = 3/4

⇒ 8+7/20 = 3/4

⇒ 15/20 = 3/4

⇒ 3/4 = 3/4

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