Compare 45/42 and 84/45
1st number: 1 3/42, 2nd number: 1 39/45
45/42 is smaller than 84/45
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 45 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 42 × 15 = 630,
45/42 = 45 × 15/42 × 15 = 675/630 - Likewise, for the 2nd fraction, since 45 × 14 = 630,
84/45 = 84 × 14/45 × 14 = 1176/630 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 675/630 < 1176/630 or 45/42 < 84/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/42 and 84/45 45/84 and 84/45 45/42 and 84/90