Aptitude - Decimal Fraction - Discussion

By taking the LCM of denominator ie 3, 5, 6, 7 in this way we get the right series of descending.

Find out the decimal fraction of each sum and then you can easily determine the largest and the smallest digit and find out the answer.

For the first 3 options, check the first two numbers.

1/3 = 0.3333 and 2/5 = 0.4 which is in ascending order.

Hence answer is Option(D).

These type of problems can be solved by Cross Multiplication principle.

I will try to explain with the present problem scenario

Consider (1/3) and (2/5)

STEP 1: Multiply numerator of 1st with denominator of 2nd
Multiply denominator of 1st with numerator of 2nd

STEP 2: The result is (1*5) and (3*2)
i.e.., 5 and 6
Now Check which number is greater of the two.
In this case 6>5
STEP 3: Check which fraction's numerator is part of the product
that results in greater number(6)

In this case 6 has numerator of 2nd fraction (2/5)
So we can say that (2/5) >(1/3)

SO ON WITH THE NEXT FRACTIONS ALSO

Product of 2nd number denominator with 1st number numerator is more than pr of 1st number deno with 2nd number numo then 1st number is greater ,

Here in d option 36>35(6*6 > 7*5)

Use LCM method to get same denominator and solve.

The fraction with highest denominator value will have smaller decimal value, and descending implies smaller value towards higher one so.

First of divide the number by their respective denominator and then arrange the fractions in respective ascending and descending whatever is asked.

First we can understand problam by as 1/3 means 1 part form the 3 parts so it may some less value accound to other factor so the 1/3 will not come first fraction so 6/7 mean 6 parts so remaing is one part is '1' so it is highest value so the descending order is right.

Just divide and see the first and last numbers we will get as. 333 for 1/3, . 857 for 6/7. So, from this we can judge the answer easily.