A number decreased by thirty-one is fifty-two.

82

Step-by-step explanation:

31+51= 82

Check: 82 decreased by 31 is 51

81-31=51

okay wait before i answer, is this for your points on a graph?

step-by-step explanation:

because 1/3 is a fraction. we can tell because there is a divisor symbol between the 1 and the 3. if we were to add 2 fractions together, we would add the numerators, which is the number on top, but not the denominators, which is the number on the bottom

1/3+1/3=2/3

hope this !