How can you make a high estimate for the sum of two factions in a word problem

To add fractions with the same denominator you have to add the numerators and leave the same denominator.

Explanation:

To add fractions with different denominators, the first thing that you have to do is find a common denominator: this is the least common multiple of the denominators that you have.

Then we multiply each numerator by the number that we have multiplied the denominator by.

Finally, we add the numerators that we have obtained and keep the same denominator.

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.