31/8 - 1 7/8 =__ _/8 (write your answer as a mixed number.)

2 1/8

to solve you need to convert 3 1/8 and 1 7/8 improper fractions. wicth is 25/8 and 8/8. then subtract the numerators and keep the denominators the same. it would equal 17/8. and finally you need to convert it back to a mixed number by dividing the numerator by the denominator and putting the remaining as the numerator witch equals 2 1/8

Here you go, the answer is 25
you can look at the work in the photo clipped