Answers

Compare 7/8 and 21/18

1^st number: 7/8, 2^nd number: 1 3/18

7/8 is smaller than 21/18

Steps for comparing fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 8 and 18 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 8 × 9 = 72,
   7/8 = 7 × 9/8 × 9 = 63/72
3. Likewise, for the 2nd fraction, since 18 × 4 = 72,
   21/18 = 21 × 4/18 × 4 = 84/72
4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
5. 63/72 < 84/72 or 7/8 < 21/18

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