Alex spends 3/4 hour practicing the guitar each day. he also spends 1/2 hour reading. what is the least common denominator of the fractions?

The least common denominator of the fractions is 4 because 1/2=2/4 and 3/4 cannot be reduced.

The least common denominator of these fractions is four.

LCD=4

Hope this helps!  :)

Step-by-step explanation:

the line of

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.