Question

Calculati:plz
(3 pe 17 +8 pe 102)+14 pe 17=
(1 pe 33 + 3 pe 11) +2 pe 11=
2 pe 5 + (1 pe 20 + 4 pe 5)=

Answer 1

(2/17+8/102)+14/17=
(6*3/17+8/102)+14/17=
(18/102+8/102)+14/17=
26/102+14/17=
13/51+3*14/17=
13/51+42/51=55/51
(1/33+3*3/11)+3*2/11=
(1/33+9/33)+6/33=
10/33+6/33=16/33
4*2/5+(1/20+4*4/5)=
8/20+(1/20+16/20)=
8/20+17/20=
25/20=5/4