Compare 70/45 and 18/42
1st number: 1 25/45, 2nd number: 18/42
70/45 is greater than 18/42
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 42 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 45 × 14 = 630,
70/45 = 70 × 14/45 × 14 = 980/630 - Likewise, for the 2nd fraction, since 42 × 15 = 630,
18/42 = 18 × 15/42 × 15 = 270/630 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 980/630 > 270/630 or 70/45 > 18/42
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