Помогите плиз и ещё г) 2/5×х=1 1/5
2/5 *х= 1 1/5 3*х = 1/3 2/5 * х = 6/5 х = 1/3 :3 х = 6/5: 2/5 х = 1/3*3 х = 6*5/2*5 = 3 х= 1/9
3х=1/3; х=1/3÷3=1/3 × 1/3; х=1/9; 2/5х=1_1/5; 2/5х=6/5; х=6/5 ÷ 2/5= 6/5 × 5/2; х=3.