Вычислите: а) 7/18+1/27 б) 0,9-5/16 в) 5/6-(1/2-2/7)

Question

Вычислите: а) 7/18+1/27
б) 0,9-5/16
в) 5/6-(1/2-2/7)

Answer 1

0,9-5/16=9/10-5/16=72/80-25/80=47/80
5/6-(1/2-2/7)=5/6-1/2+2/7=35/42-21/42+12/42=26/42=13/21