Direction/Instructions:Add or subtract using the given Least Common Denominator (LCD). Simplify the answers if needed.
Activity 1: Add or Subtract Me!
1) 3/9 + 1/6 = 18/ + 18/ =
2)3/4 + 2/8 = 8/ + 8/ =
3)9/12 - 2/6 = 12/ - 12/ =
4)12/21 - 5/7 = 21/- 21/=
5)4/5 -6/10 = 10/ - 10/ =
Activity 1: Add or Subtract Me!
1) 3/9 + 1/6 = 18/ + 18/ =
2)3/4 + 2/8 = 8/ + 8/ =
3)9/12 - 2/6 = 12/ - 12/ =
4)12/21 - 5/7 = 21/- 21/=
5)4/5 -6/10 = 10/ - 10/ =
Answers & Comments
Answer: 1. 2/3 2. 1 3. 5/12 4. -1/7 5. 3/5
Step-by-step explanation: