Compare 21/70 and 20/54
21/70 is smaller than 20/54
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 54 is 1890
Next, find the equivalent fraction of both fractional numbers with denominator 1890 - For the 1st fraction, since 70 × 27 = 1890,
21/70 = 21 × 27/70 × 27 = 567/1890 - Likewise, for the 2nd fraction, since 54 × 35 = 1890,
20/54 = 20 × 35/54 × 35 = 700/1890 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 567/1890 < 700/1890 or 21/70 < 20/54
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