Subtract 21/45 from 1/98
1/98 - 21/45 is -671/1470.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 45 is 4410
Next, find the equivalent fraction of both fractional numbers with denominator 4410 - For the 1st fraction, since 98 × 45 = 4410,
1/98 = 1 × 45/98 × 45 = 45/4410 - Likewise, for the 2nd fraction, since 45 × 98 = 4410,
21/45 = 21 × 98/45 × 98 = 2058/4410 - Subtract the two like fractions:
45/4410 - 2058/4410 = 45 - 2058/4410 = -2013/4410 - After reducing the fraction, the answer is -671/1470
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/98-21/45 1/98-42/45 1/98-21/90 3/98-21/45 1/98-63/45 5/98-21/45 7/98-21/45