5 5\21-2 13\14 помагите плиз

Question

5 5\21-2 13\14 помагите плиз

Answer 1

=5ц10/42-2ц39/42=4ц52/42-2ц39/42=2ц13/42

Answer 2

110/21- 41/14 = 220/42- 123/42 = 97/42