Найти сумму 12+6+3+3/2+3/4+3/8+3/16+3/32

Question

Найти сумму 12+6+3+3/2+3/4+3/8+3/16+3/32

Answer 1

12 + 6 + 3 + 3/2 + 3/4 + 3/8 + 3/16 + 3/32 = 21 + 48/32 + 24/32 + 12/32 + 6/32 + 3/32 = 21 90/32 = 23 26/32 =
= 23 13/16

Answer 2

12+6=18
18+3=21
21+3/2=24/3
24/3+3/4=27/7
27/7+3/8=30/15
30/15+3/16=33/31
33/31+3/32=36/63
сократить36/63 на 3=12/21