What is the simplest form of 35 40?

To simplify the fraction 35/40, find the greatest common divisor (GCD) of the numerator and the denominator. Both 35 and 40 are divisible by 5. Dividing both by 5, we get 35 ÷ 5 = 7 and 40 ÷ 5 = 8. Therefore, the simplest form of 35/40 is 7/8.