Subtract 3/14 from 28/90
28/90 - 3/14 is 61/630.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 14 is 630
Next, find the equivalent fraction of both fractional numbers with denominator 630 - For the 1st fraction, since 90 × 7 = 630,
28/90 = 28 × 7/90 × 7 = 196/630 - Likewise, for the 2nd fraction, since 14 × 45 = 630,
3/14 = 3 × 45/14 × 45 = 135/630 - Subtract the two like fractions:
196/630 - 135/630 = 196 - 135/630 = 61/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/90-3/14 28/90-6/14 28/90-3/28 84/90-3/14 28/90-9/14 28/90-3/42 28/90-15/14 28/90-3/70 28/90-21/14 28/90-3/98