Express -2/7 as a rational whose denominatoris -21.
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Answer:
-6/21
Step-by-step explanation:
Given,
-2/7 = ?/21
Let the numerator be x
-2/7 = x/21
-2/7×3 = x/21
Multiplying 3 on both sides
-2×3/7×3 =-6/21
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