(1/10 + 1/100 + 1/1000) ÷ 10
(1/3 + 2/5 + 1/30) ÷ (23/30)
35/36
117/290
(3/4 + 5/6 x 3/5) ÷ (1/2 - 2/7 x 7/5)
65/108
1
(7/8 + 1 1/4 - 3/2 x 4/9) ÷ (2 1/2 - 1 1/4 - 3/2 x 4/9)
(2/5 + 3/10 + 1/20) ÷ (2/3 + 1/9 + 5/6)
109/10000
12 enteros 1/2
(4 1/2 - 3 2/3 + 1/4) ÷ (2 - 1/5)
