1/3+5
=0,33+5
=5,33
neu ban hoi la vi sao 1/3 = 0,33 vi ket qua dung la 0,33333333333 nhung trong so thap phan so nao co phan thap phan co 2 chu so tro len se duoc rut gon ve 2 chu so o phan thap phan
Ta có:\(1:3+5-67=\frac{1}{3}+5-67=5\frac{1}{3}-67=-61\frac{2}{3}\)