Question

Find: (i) 5/12-7/15-9/20​

Answer 1

Given,

$\frac{5}{12} - \frac{7}{15} - \frac{9}{20}$

To find,

The value after solving the given expression.

Solution,

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

According to the question,

We have the following expression:

$\frac{5}{12} - \frac{7}{15} - \frac{9}{20}$

Now, first, we will find the LCM of their denominators using the prime factorisation method.

The LCM of 12,15 and 20 is 60.

Now, solving the expression:

$\frac{(5)5 - (4)7 - (3)9}{60}$

(25-28-27)/60

(Note that the two negative integers are added but the result remains negative.)

25-55/60

(Note that one negative and one positive integer are subtracted but the sign remains of the larger number.)

-30/60

-1/2

or -0.5

Hence, the value of $\frac{5}{12} - \frac{7}{15} - \frac{9}{20}$ is -1/2.

Answer 2

Answer:

i hope my answer help you