There were 75 pebbles in boxes a, b and c. after moving 28 pebbles from a to b, 24 pebbles from b to c, and 19 pebbles from c to a, there was an equal number of pebbles in each box. how many pebbles were in box a in the beginning.

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 !

just sum

10 + 10 = 20