The problem is for grade 7 children, but makes 60% of adults give up! How about you?

It seems that the words "children learn more and more hard" are gradually experiencing. Because recently, a problem for children to 7 has caused many adults to scratch their heads without coming out.

Specifically, it was a girl's fractional homework in Springfield, Queensland (Australia). However, the problem caused both her mother, her aunt and grandmother to lose their energy for 45 minutes to solve.

So, her mother had to say: "It seems like my brain has a problem. How can an 11-year-old child do it? To me this is too much to bear".

The problem was posted on a social networking site, but eventually 60% of adults answered incorrectly.

And you? Try it.

Question: Complete these methods by selecting the appropriate number. Know that this is a fractional addition problem , but do not use the lowest common denominator of those two numbers.

Try your best. If not, see the answer.

Answer

This problem is not really difficult, but requires a bit of logical thinking.

The first is number 2/3. In expression 2, you will see the numeric pattern of 48, equal to 16 times the number 3. So, the numerator here is 16 x 2 = 32.

Next, if you want to add a fraction, you must have the same denominator. In the second expression is the denominator step, so the denominator here is 48. So deduce, the numbers in expression 2 will be 12/48 + 32/48 = 44/48 = 11/12 .

From there, deduce the first number: 2/8.

So we have the answer: 2/8 + 2/3 = 12/48 +32/48 = 44/48 = 11/12.