(1,09-0,29)*1 1/4 ____________+1=? (18,09-16 13/20)*8/9

Question

(1,09-0,29)*1 1/4
____________+1=?
(18,09-16 13/20)*8/9

Answer 1

1) (1,09-0,29)*1 1/4+1=0,8*1 1/4+1=8/10*5/4=1+1=2
2) (18,09-16 13/20)*8/9=(19 9/100-16 13/20)*8/9=
=(19 9/100-16 65/100)*8/9==(18 109/100-16 13/20)*8/9=2 96/100*8/9=
=296/100*8/9=592/225=2 142/225

Comments

Ой прости....там нет числа 18,09, а 18,9