2/5×(-3/7)-1/6×3/2+1/14×2/5
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Answer:
-11/28
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2/5×(-3/7)-1/6×3/2+1/14×2/5
2/5×-3/7+(-1/6)×3/2+1/14×2/5
2/5×(-3/7)+1/14×2/5+(-1/6)×3/2
2/5×[(-3/7)+1/14)+(-1/6)×3/4]
2/5(-6/14+1/14)+-1/4
2/5+5/14+-1/4
2/14+-1/4
-1/7+-1/4
4+7/28
=-11/28
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