Compare 21/70 and 14/15
21/70 is smaller than 14/15
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 15 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
21/70 = 21 × 3/70 × 3 = 63/210 - Likewise, for the 2nd fraction, since 15 × 14 = 210,
14/15 = 14 × 14/15 × 14 = 196/210 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 63/210 < 196/210 or 21/70 < 14/15
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