What is 1 2/3 in improper fraction

Step-by-step explanation:

Convert the mixed number 123 1 2 3 into an improper fraction first by multiplying the denominator (3) by the whole number part (1) and add the numerator (2) to get the new numerator. Place the new numerator (5) over the old denominator (3).

1 2/3 = 3/3 + 2/3 = (3 + 2) / 3 = 5/3