Question

How to calculate 1/15 + 1/10
In one solution its shows 30 and in another it is 6
I can't understand
How to solve
Which one is right and which one is not
Plss helpppp me

Answer 1

Answer:

Now it has unlike denominator we must find L.C.M

Therefore LCM of 15 and 10 is 30 .

Hence multiply first fraction by 2 to get 30 in denominator

$\frac{1}{</em></strong><strong><em>15</em></strong><strong><em>} \times \frac{2}{2}$

we get

$\frac{2}{30}$

Next multiply the second fraction by 3 to get 30 in denominator

$\frac{1}{10} \times \frac{3}{3}$

So we get

$\frac{3}{30}$

Adding both we get

$\frac{2}{30} + \frac{3}{30} = \frac{5}{30}$

Dividing the fraction by 5we get

$\frac{5}{30} \div \frac{5}{5}$

$\frac{1}{6}$

Hence answer is 1/6

Answer 2

Answer:

Answer is 1/6

1/15 & 1/10

= take the LCM. LCM will be 30

= 1×2/15×2 + 1×3/10×3

= 2+3/30

= 5/30

= 1/6

This is the final answer.

HOPE IT HELPS YOU