Compare 15/70 and 42/20
1st number: 15/70, 2nd number: 2 2/20
15/70 is smaller than 42/20
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 20 is 140
Next, find the equivalent fraction of both fractional numbers with denominator 140 - For the 1st fraction, since 70 × 2 = 140,
15/70 = 15 × 2/70 × 2 = 30/140 - Likewise, for the 2nd fraction, since 20 × 7 = 140,
42/20 = 42 × 7/20 × 7 = 294/140 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 30/140 < 294/140 or 15/70 < 42/20
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