Compare 20/70 and 90/40
1st number: 20/70, 2nd number: 2 10/40
20/70 is smaller than 90/40
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 70 × 4 = 280,
20/70 = 20 × 4/70 × 4 = 80/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
90/40 = 90 × 7/40 × 7 = 630/280 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 80/280 < 630/280 or 20/70 < 90/40
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