Subtract 2/28 from 2/45
2/45 - 2/28 is -17/630.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 28 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 45 × 28 = 1260,
2/45 = 2 × 28/45 × 28 = 56/1260 - Likewise, for the 2nd fraction, since 28 × 45 = 1260,
2/28 = 2 × 45/28 × 45 = 90/1260 - Subtract the two like fractions:
56/1260 - 90/1260 = 56 - 90/1260 = -34/1260 - After reducing the fraction, the answer is -17/630
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/45-2/28 2/45-4/28 2/90-2/28 2/45-2/56 6/45-2/28 2/45-6/28 2/45-2/84 10/45-2/28 2/45-10/28 14/45-2/28 2/45-14/28