2. Solve using a suitable property. Also,
name the property used.
a. 2/9+(-1/7)+4/9+(-2/7)
Answers
Answered by
0
5/21
2/9+(-1/7)+5/9+(-2/7)
2/9-1/7+4/9-2/7
2/9+4/9-1/7-2/7
6/9-3/7
42/63-27/63
15/63
5/21
I think this should be the answer
Answered by
0
Answer:
5/21
Step-by-step explanation:
2/9-1/7+4/9-2/7
(14-9+28-18)/63
15/63
5/21
hope this helpful
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