Question

3/7 + (-8/21) + 2/3

Answer 1

5/7

Answer 2

can u put the steps?

Answer 3

\[{3 \over 7} + {-8 \over 21} + {2 \over 3 }\]
\[{ 9 \over 21 } + {-8 \over 21} + {14 \over 21 }\]
\[{ { 9 -8 + 14 } \over 21 }\]
\[{ 15 \over 21 } = { { 15 \over 3 } \over { 21 \over 3 } } = {5 \over 7 }\]