Answers

Compare 21/70 and 60/72

21/70 is smaller than 60/72

Steps for comparing fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 70 and 72 is 2520
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2520
2. For the 1st fraction, since 70 × 36 = 2520,
   21/70 = 21 × 36/70 × 36 = 756/2520
3. Likewise, for the 2nd fraction, since 72 × 35 = 2520,
   60/72 = 60 × 35/72 × 35 = 2100/2520
4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
5. 756/2520 < 2100/2520 or 21/70 < 60/72

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