** дроби. в) (3 + 7/11) * 1/4 - 1/22 = ?? -----------------------------------------...

Question

На дроби.
в) (3 + 7/11) * 1/4 - 1/22 = ??
-----------------------------------------
(5-3/11) : 13 + 1/2 = ??

Answer 1

(3+7/11)*1/4-1/22=(33/11-7/11)*1/4-1/22=26/11*1/4-1/22=13/44-1/22=13/44-2/44=11/44=0.25

(5-3/11)/13+1/2=(55/11-3/11)/13+1/2=52/11*1/13+1/2=4/11+1/2=8/22+11/22=19/22