Answers

Compare 7/90 and 28/20

1^st number: 7/90, 2^nd number: 1 8/20

7/90 is smaller than 28/20

Steps for comparing fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 20 is 180
2. For the 1st fraction, since 90 × 2 = 180,
   7/90 = 7 × 2/90 × 2 = 14/180
3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
   28/20 = 28 × 9/20 × 9 = 252/180
4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
5. 14/180 < 252/180 or 7/90 < 28/20

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