4. The multiplicative inverse of sum of-2/3 and 5/7 is
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Answer:
21
Step-by-step explanation:
First of all we have to sum up -2/3 &5/7
So (-2/3)+(5/7)
LCM=3*7=21
15-14/21=1/21
Now simply the multiplicative inverse of 1/21 is 21
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