Compare 15/70 and 21/5
1st number: 15/70, 2nd number: 4 1/5
15/70 is smaller than 21/5
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 5 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 70 × 1 = 70,
15/70 = 15 × 1/70 × 1 = 15/70 - Likewise, for the 2nd fraction, since 5 × 14 = 70,
21/5 = 21 × 14/5 × 14 = 294/70 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 15/70 < 294/70 or 15/70 < 21/5
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