# Arrange the following in descending order: (i) 2/9, 2/3, 8/21 (ii) 1/5, 3/7, 7/10

**Solution:**

Convert the given fractions into like fractions so the all of them have the same denominator. Now the fractions can be easily arranged into descending order by comparing their numerators.

(i) 2/9, 2/3, 8/21

Converting them into like fractions, we get

= (2 × 7)/(9 × 7), (2 × 21)/(3 × 21), (8 × 3)/(21 × 3)

= 14/63, 42/63, 24/63

Arranging in descending order

42/63, 24/63, 14/63

Therefore,

2/3, 8/21, 2/9 are in the descending order

(ii) 1/5, 3/7, 7/10

Converting them into like fractions, we get

= (7 × 7)/(10 × 7), (3 × 10)/(7 × 10), (1 × 14)/(5 × 14)

= 49/70, 30/70, 14/70

Arranging in descending order

7/10 > 3/7 >1/5.

Therefore,

7/10, 3/7, 1/5 are in the descending order

**Video Solution:**

## Arrange the following in descending order: (i) 2/9, 2/3, 8/21 (ii) 1/5, 3/7, 7/10

### NCERT Solutions Class 7 Maths - Chapter 2 Exercise 2.1 Question 2

Arrange the following in descending order: (i) 2/9, 2/3, 8/21 (ii) 1/5, 3/7, 7/10

The descending order of the fractions are: (i) 2/3, 8/21, 2/9. (ii) 7/10, 3/7, 1/5