Question

LCD of 9/12 and 3/10 . rewrite each fraction as an equivalent fraction with the LCD . Dont get this problem

Answer 1

you are looking for the least common multiple of 12 and 10
it is 60 because both numbers divide 60 evenly and 60 is the smallest one

Answer 2

then write
\[\frac{9}{12}=\frac{5\times 9}{60}=\frac{45}{60}\] and
\[\frac{3}{10}=\frac{6\times 3}{60}=\frac{18}{60}\]