Compare 21/70 and 7/27
21/70 is greater than 7/27
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 27 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 27 × 70 = 1890,
7/27 = 7 × 70/27 × 70 = 490/1890 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 567/1890 > 490/1890 or 21/70 > 7/27
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