Subtract 40/98 from 28/45
28/45 - 40/98 is 472/2205.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 98 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 45 × 98 = 4410,
28/45 = 28 × 98/45 × 98 = 2744/4410 - Likewise, for the 2nd fraction, since 98 × 45 = 4410,
40/98 = 40 × 45/98 × 45 = 1800/4410 - Subtract the two like fractions:
2744/4410 - 1800/4410 = 2744 - 1800/4410 = 944/4410 - After reducing the fraction, the answer is 472/2205
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/45-40/98 28/45-80/98 28/90-40/98 84/45-40/98