Answer:
[tex]-\frac{1}{21}[/tex]
Step-by-step explanation:
The opposite of -2\3 is 2\3
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-5\7 + 2\3
Least common multiple of 7 and 3 is 21. Convert -5\7 and 2\3 to fractions with denominator 21.
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-15\21 + 14\21
Sinse -15\21 and 14\21 have the same denominator, add them by adding their numerators.
[tex]\frac{-15+14}{21}[/tex]
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Add −15 and 14 to get −1.
-1\21
