Solutions by everydaycalculation.com

640 is greater than 230

- Find the least common denominator or LCM of the two denominators:

LCM of 40 and 30 is**120**

Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 40 × 3 = 120,

640 = 6 × 340 × 3 = 18120 - Likewise, for the 2nd fraction, since 30 × 4 = 120,

230 = 2 × 430 × 4 = 8120 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 18120 > 8120 or 640 > 230

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