Compare 70/30 and 81/72
1st number: 2 10/30, 2nd number: 1 9/72
70/30 is greater than 81/72
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 30 and 72 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 30 × 12 = 360,
70/30 = 70 × 12/30 × 12 = 840/360 - Likewise, for the 2nd fraction, since 72 × 5 = 360,
81/72 = 81 × 5/72 × 5 = 405/360 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 840/360 > 405/360 or 70/30 > 81/72
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