Solutions by everydaycalculation.com

13 is greater than 17

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

LCM of 3 and 7 is**21**

Next, find the equivalent fraction of both fractional numbers with denominator 21 - For the 1st fraction, since 3 × 7 = 21,

13 = 1 × 73 × 7 = 721 - Likewise, for the 2nd fraction, since 7 × 3 = 21,

17 = 1 × 37 × 3 = 321 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 721 > 321 or 13 > 17

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