Help please, my 2nd time asking this question.

#3 is    #4 is

Step-by-step explanation:

you must find a common denominator in both problems.

For #3 the common denominator is 4 so you would multiply by to get then add the numerators together to get 3 and the denominator stays 4.

For #4 the common denominator is 8 so you would multiply by to get

then add the numerators together to get 7 and denominator stays 8.

answer: true

step-by-step explanation: