Question

subtract -7/60 -3/20​

Answer 1

Answer:

Step-by-step explanation:

Answer is 1

/30

Answer 2

Answer:

$\bold{\dfrac{-4}{15}}$

Step-by-step explanation:

This is a Simple question;

                -7/60 -3/20​

or,             $\dfrac{-7}{60}-\dfrac{3}{20}$

So let's start this question by taking the LCM of 60 and 20;

Prime factors of 60 is 2, 2, 3, 5.

And, Prime factors of 20 is 2, 2, 5.

So, therefore the LCM of 60 and 20 is 2 × 2 × 5 × 3 = 60

So, now we have to make the denominator of $\dfrac{3}{20}$ as 60.

For doing that we'll have to multiply $\dfrac{3}{3}$ to it;

So, our expression would be;

$\dfrac{-7}{60}-\dfrac{3\times3}{20\times3}$

Simplify;

$\dfrac{-7}{60}-\dfrac{9}{60}$

Now let's solve the above expression;

$\dfrac{-7-9}{60}$

Simplify;

$\dfrac{-16}{60}$

Simplify it further;

$\bold{\dfrac{-4}{15}}$