Compare 40/90 and 18/49
40/90 is greater than 18/49
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 49 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 90 × 49 = 4410,
40/90 = 40 × 49/90 × 49 = 1960/4410 - Likewise, for the 2nd fraction, since 49 × 90 = 4410,
18/49 = 18 × 90/49 × 90 = 1620/4410 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 1960/4410 > 1620/4410 or 40/90 > 18/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/90 and 18/49 40/90 and 36/49 40/90 and 18/98 40/90 and 54/49 40/90 and 90/49