Compare 8/10 and 21/30
810 is greater than 2130
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 30 is 30
Next, find the equivalent fraction of both fractional numbers with denominator 30 - For the 1st fraction, since 10 × 3 = 30,
810 = 8 × 310 × 3 = 2430 - Likewise, for the 2nd fraction, since 30 × 1 = 30,
2130 = 21 × 130 × 1 = 2130 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 2430 > 2130 or 810 > 2130
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