Question

Find the difference of (iii) (21/25) and (18/20) (iv) 3 3/10 and 2 7/15​

Answer 1

Step-by-step explanation:

(i) Given (21/25) and (18/20) To find the difference we have to make it equivalent fractions. Taking LCM of 25 and 20 is 100. Now converting the given fractions into equivalent fractions with denominator 100. (18/20) – (21/25) = (90/100) – (84/100) = (90 – 84)/100 = 6/100 By converting it into its simplest form we get = 3/50

(ii) Given 3 (3/10) and 2 (7/15) First convert given mixed fractions into improper fractions. (33/10) and (37/15) To find the difference we have to make it equivalent fractions. Taking LCM of 10 and 15 is 30. Now converting the given fractions into equivalent fractions with denominator 30. (33/10) – (37/15) = (99/30) – (74/30) = (99 – 74)/30 = (25/30) By converting it into simplest form we get = (5/6)Read more on Sarthaks.com - https://www.sarthaks.com/679776/find-the-difference-of-i-21-25-and-18-20-ii-3-3-10-and-2-7-15

Answer 2

Step-by-step explanation:

(iii) Given (21/25) and (18/20)

To find the difference we have to make it equivalent fractions.

Taking LCM of 25 and 20 is 100.

Now converting the given fractions into equivalent fractions with denominator 100.

(18/20) – (21/25)

= (90/100) – (84/100)

= (90 – 84)/100

= 6/100

By converting it into its simplest form we get

= 3/50

(iv) Given 3 (3/10) and 2 (7/15)

First convert given mixed fractions into improper fractions.

(33/10) and (37/15) To find the difference we have to make it equivalent fractions.

Taking LCM of 10 and 15 is 30.

Now converting the given fractions into equivalent fractions with denominator 30.

(33/10) – (37/15)

= (99/30) – (74/30)

= (99 – 74)/30

= (25/30)

By converting it into simplest form we get

= (5/6)

I hope this answer is write