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

A high estimate of the sum of fractions is gotten by finding a common denominator of the fractions, and then sum them up afterwards.

Take for instance, the following sum of fractions:

Express 1/2 and 5/7 as fractions of the same denominators

Take LCM

Add the expressions on the numerator

So, a high estimate of the sum of fractions is gotten by adding the fractions after finding a common denominator.

Read more about fractions at:

link

Step-by-step explanation:

To make a high estimate for the sum of two fractions in a word problem, rhe following steps are required.

Let the two fractions be represented as and

To perfrom the operation    +

Step 1 : Check if the denominators of the fraction are same. If so then, then add the numerators directly by keeping the same denominator.

Step 2: If the denominators are different, then find the common denominator between the fractions and multiply them accordingly. Then perform the addition operation.

answer: 8 years

step-by-step explanation:

the explanation is that in 8 years the child will be 20 and in 8 years the father will be 40 and 20 is half of 40.