Compare 6/70 and 20/80
6/70 is smaller than 20/80
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 80 is 560
Next, find the equivalent fraction of both fractional numbers with denominator 560 - For the 1st fraction, since 70 × 8 = 560,
6/70 = 6 × 8/70 × 8 = 48/560 - Likewise, for the 2nd fraction, since 80 × 7 = 560,
20/80 = 20 × 7/80 × 7 = 140/560 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 48/560 < 140/560 or 6/70 < 20/80
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