Compare 70/40 and 7/90
1st number: 1 30/40, 2nd number: 7/90
70/40 is greater than 7/90
Steps for comparing fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 90 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
70/40 = 70 × 9/40 × 9 = 630/360 - Likewise, for the 2nd fraction, since 90 × 4 = 360,
7/90 = 7 × 4/90 × 4 = 28/360 - Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
- 630/360 > 28/360 or 70/40 > 7/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/40 and 14/90 70/80 and 7/90 70/40 and 21/90 70/40 and 35/90 70/40 and 49/90