How many millimetres are there in 1 5 of a metre?

As we know that 1 m = 1000 m m So, 1 5 m = 1 5 × 1000 = 200 Thus, 1 5 m is 200 m m

Arrange 6 12 , 5 12 , 2 3 , 3 8 in ascending order.

Given, 6 12 , 5 12 , 2 3 , 3 8 As we can see that denominators of all fractions are different First we find the L.C.M. of the denominators of the fractions to make the denominators same. L.C.M of 12 , 12 , 3 and 8 is 24 Now, = 6 × 2 12 × 2 , 5 × 2 12 × 2 , 2 × 8 3 × 8 , 3 × 3 8 × 3 = 12 24 , 10 24 , 16 24 , 9 24 Comparing numerators, we find that 9 24 < 10 24 < 12 24 < 16 24 Thus, the ascending order of given fraction is 3 8 < 5 12 < 6 12 < 2 3

Arrange 3 7 , 9 35 , 11 14 , 13 28 in descending order.

Given, 3 7 , 9 35 , 11 14 , 13 28 As we can see that denominators of all fractions are different First we find the L.C.M. of the denominators of the fractions to make the denominators same. L.C.M of 7 , 35 , 14 and 28 is 140 Now, = 3 × 20 7 × 20 , 9 × 4 35 × 4 , 11 × 10 14 × 10 , 13 × 5 28 × 5 = 60 140 , 36 140 , 110 140 , 65 140 Comparing numerators, we find that 110 140 > 65 140 > 60 140 > 36 140 Thus, the ascending order of given fraction is 11 14 > 13 28 > 3 7 > 9 35