Answer:
b^20
Step-by-step explanation:
when the exponents have one inside and the other outside, they are multiplied.
Oh I get this.
So what you have to do is leave the same denominator and just count. Once a fraction has the same numerator and denominator that means it is a whole number.
2 and 7/8 is the same as 23/8. 1 and 1/2 is the same as 3/2, which is the same as 12/8. 23/8 minus 12/8 equals 11/8, which is your answer.