Question

please answer the questions please and explain it also! if you want brainlist so answer questions please! ​ ​

Answer 1

Step-by-step explanation:

1) 2/3 AND 3/4  [HERE WE USE THE FORMULA A+B/2]

2/3+3/4/2

=17/12/2

=17/12[2]

=17/24

HERE

2/3+17/24/2

=16+17/24/2

=33/24/2

=33/24[2]

=33/48

=11/16

HERE

17/24+3/4/2

=17+18/24/2\

=35/24/2

=35/48

2)1/4AND 1/5

1/4+1/5/2

=5+4/20/2

=9/20/2

9/40

HERE

1/4+9/40/2

=10+9/40/2

=19/40/2

=19/80

HERE

9/40+1/5/2

=9+8/40/2

=17/40/2

=17/80