Answer:
3) 3/4
4) 7/8
Step-by-step explanation:
3) 1/4 + 1/2 =
1/4 + 2/4 = 3/4
(Multiply numerator and denominator by 2 to obtain the same denominator)
4) 1/2 + 3/8 =
4/8 + 3/8 = 7/8
(Multiply numerator and denominator by 4 to obtain the same denominator)
3/4
