Question

When adding the fractions and ;, what's the answer if you add 9/12 ,3/6 and 3/9 and find the least common denominator

Answer 1

the given expression is,\

9/12 + 3/6 + 3/9

we have denominators 12 , 6 , 9

now we take the LCM to get common denominator

LCM of 12, 6 , 9 is

12 = 3 x 2 x 2

6 = 2 x 3

9 = 3 x 3

so the LCM is 3 x 3 x 2 x 2 = 36

$\frac{9}{12}+\frac{3}{6}+\frac{3}{9}=\frac{9\times3+3\times6+3\times4}{36}$$\frac{27+18+12}{36}=\frac{57}{36}$

so the answer is 57