Question

1. find the difference with solution

iii 21 and 18
_ _

25 20​

Answer 1

Answer:

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Answer 2

Answer: (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)

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