Compare 9/30 and 72/80
9/30 is smaller than 72/80
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 80 is 240
Next, find the equivalent fraction of both fractional numbers with denominator 240 - For the 1st fraction, since 30 × 8 = 240,
9/30 = 9 × 8/30 × 8 = 72/240 - Likewise, for the 2nd fraction, since 80 × 3 = 240,
72/80 = 72 × 3/80 × 3 = 216/240 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 72/240 < 216/240 or 9/30 < 72/80
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