Вычислите сумму.6 2/5+4 1/15=...3 1/7+5/14=...1 2/21+2/3=...

Question

Вычислите сумму.
6 2/5+4 1/15=...
3 1/7+5/14=...
1 2/21+2/3=...

Answer 1

=6 6/15+4 1/15=10 7/15
=3 2/14+5/14=3 7/14=3 1/7
=1 2/21+14/21=1 16/21