2/3 -4.1/2+3/4 -5/9.3/11+(-13/18).3/11 (-1/5+3/7) :2/11+(-4/5+4/7):2/11 3.tìm x biết -3/8 – x=5/12 -5/8 -x=-3/20 – (-1/6) x – 3/4=5/2 x:(-4 2/7)= -4 1
2/3 -4.1/2+3/4 -5/9.3/11+(-13/18).3/11 (-1/5+3/7) :2/11+(-4/5+4/7):2/11 3.tìm x biết -3/8 – x=5/12 -5/8 -x=-3/20 – (-1/6) x – 3/4=5/2 x:(-4 2/7)= -4 1/5 (5,75):x=14/23