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Last updated at July 12, 2018 by Teachoo
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Ex 2.3, 4 Which is greater: (i) 2/7 of 3/4 or 3/5 of 5/8 2/7 of 3/4 = 2/7 ร 3/4 = (2 ร 3)/(7 ร 4) = 3/(7 ร 12) = ๐/๐๐ 3/5 of 5/8 = 3/5 ร 5/8 = (3 ร 5)/(5 ร 8) = ๐/๐ Now, We have to find greater of 3/14 & 3/8 To compare fractions, we make denominator equal. Common denominator = LCM of 14 & 8 = 2 ร 2 ร 2 ร 7 = 8 ร 7 = 56 So, 3/14 = 3/8 = โด 21/56 > 12/56 i.e. 3/8 > 3/14 โด 3/5 of 5/8 > 2/7 of 3/7 So, ๐/๐ of ๐/๐ is greater. Ex 2.3, 4 Which is greater: (ii) 1/2 of 6/7 or 2/3 of 3/71/2 of 6/7 = 1/2 ร 6/7 = (1 ร 6)/(2 ร 7) = ๐/๐ 2/7 of 3/7 = 2/7 ร 3/7 = (2 ร 3)/(3 ร 7) = ๐/๐ Now, We have to find greater of 3/7 & 2/7 Since denominator is same, Number with greater numerator is greater 3/7 > 2/7 โด 1/2 of 6/7 > 2/3 of 3/7 Thus, ๐/๐ of ๐/๐ is greater.
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