First you need to write the numerical equation for the given:

When you will simplify this fraction, you can divide the expressions. Based on the law of exponents when you divide like terms with different exponents, you can subtract the exponents of the denominator from the numerator.
So if you will simplify the equation:

Subtract the following:
Exponents of a 7-4 and;
Exponents of b 8-4
Your answer should be
Answer:
78.1428571429
Step-by-step explanation:
What happed here is that what you can preddict is that, a aprediction.
In real life things not always will follow probabilities tables.
If you have two heterygous parents, you have a possibilie based on two alleles fot the same characteristic.
2 and 2.5 gg g g h g I j j j