(1/4 + 1/5 x= 1 4/5, ( 3 1/8 + 1 3/4) х =2 1/6, (2 1/12 -1 5/6) х = 3/4

Question

(1/4 + 1/5 x= 1 4/5, ( 3 1/8 + 1 3/4) х =2 1/6, (2 1/12 -1 5/6) х = 3/4

Answer 1

1/4 + 1/5х = 1 4/5; 1/5Х = 1 4/5 - 1/4; 1/5Х = 1 16/20 - 5/20; 1/5Х = 1 9/20; Х = 29/20 : 1/5; Х = 29/4 = 7 1/4........ 2) (3 1/8 + 1 3/4) Х = 2 1/6; 4 7/8 Х = 2 1/6; Х = 13/6 : 39/8; Х = 4/9.......... 3) ( 2 1/12 - 1 5/6) Х = 3/4; 3/12Х = 3/4; 1/4Х = 3/4; Х = 3/4 : 1/4; Х = 3.