Question

evaluate each of the following 5/63 - -6/21

Answer 1

=5/63 - (-6/21)

=5/63 + 6/21

=(5+18)/63

=23/63

Answer 2

Answer:

$\frac{23}{63}$ is the required value of  $\frac{5}{63}$ +  $\frac{6}{21}$ .

Step-by-step explanation:

Explanation:

Given that, $\frac{5}{63}$ -- $\frac{6}{21}$

• As we know, a product of two negative numbers is positive, a product of two positive numbers is always positive and the product of one negative and one positive number is always negative.

• For example , -1 and -2 = -1 × -2 = -3

• For example ,product of 2 and -3 ⇒ 2 × -3 = -6

Step 1:

We have, , $\frac{5}{63}$ -- $\frac{6}{21}$

⇒ $\frac{5}{63}$ +  $\frac{6}{21}$

LCM of 63 and 21 is 63.

⇒ $\frac{5}{63}$ +  $\frac{6}{21}$  = $\frac{5 + 18}{63}$ = $\frac{23}{63}$

Final answer:

Hence, $\frac{23}{63}$ is the required value of  $\frac{5}{63}$ +  $\frac{6}{21}$ .

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