Найди число х для которого верно равенство: а)х+1/8=3/5 б)1/3+х=5/12 в)х-3/20=1/5
Х + 1/8 = 3/5 х = 3/5 - 1/8 = 24/40 - 5/40 = 19/40 х = 19/40 1/3 + х = 5/12 х = 5/12 - 1/3 = 5/12 - 4/12 = 1/12 х = 1/12 х - 3/20 = 1/5 х = 1/5 + 3/20 = 4/20 + 3/20 = 7/20 х = 7/20