solve using apropriate property 2/5+[-5/9]+9/10+5/7
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Answered by
1
Answer:
2/5+[-5/9]+9/10+5/7
= 2/5+9/10+5/7 +[-5/9]
= 141/70 +[-5/9]
= 919 / 630 ( answer )
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Answered by
3
Answer:
Perpendicular .
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