Question

classify the following numberas rational or irrational2√7÷7√7

Answer 1

Hey buddy
here's the answer

The number is rational as root 7 can be cancelled out
and 2/7 is left ( which is a rational number )

HOPE IT HELPS. ..

Answer 2

$2 \sqrt{7} \div 7 \sqrt{7} \\ 2 \times 49 \div 7 \times 49 \\ 2 \times 49 \times \binom{1}{7} \times 49 \\ 2 \times 7 \times 49=686$