Answers

Compare 63/90 and 81/98

63/90 is smaller than 81/98

Steps for comparing fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 98 is 4410
   
   Next, find the equivalent fraction of both fractional numbers with denominator 4410
2. For the 1st fraction, since 90 × 49 = 4410,
   63/90 = 63 × 49/90 × 49 = 3087/4410
3. Likewise, for the 2nd fraction, since 98 × 45 = 4410,
   81/98 = 81 × 45/98 × 45 = 3645/4410
4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
5. 3087/4410 < 3645/4410 or 63/90 < 81/98

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