Question

17 calculați: a) 2 supra 5-1 supra 10 b) 5 supra 9-1 supra 3 c) 3 supra 4-5 supra 8 d) 1 supra 2-1 supra 3​

Answer 1

a) 2/5-1/10=

=4/10-1/10=3/10

b) 5/9-1/3=

=5/9-3/9=2/9

c) 3/4-5/8=

=6/8-5/8=1/8

d) 1/2-1/3=

=3/6-2/6=1/6