Question

1/7+2/9 y 1/4+3/8 1/2+1/6 1/2+1/4 gracias

Answer 1

1/7+2/9
=9/63+14/63
=23/63


1/4+3/8
=2/8+3/8
=5/8


1/2+1/6
=3/6+1/6
=4/6
=2/3


1/2+1/4
=2/4+1/4
=3/4