The card is 2 3 full when 375 more than 1/4 of the card is full. Set up an equation to find the total number of pictures the card can hold:
2/3(x) = 1/4(x) + 375
Find common denominator and rewrite fractions:
(9/12)x - (3/12)x = 375
Simplify:
(6/12)x = 375
Solve for x
x = 750
Now multiply by 5/6:
750 x 5/6 = 625 pictures