Subtract 9/28 from 20/98
20/98 - 9/28 is -23/196.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 28 is 196
Next, find the equivalent fraction of both fractional numbers with denominator 196 - For the 1st fraction, since 98 × 2 = 196,
20/98 = 20 × 2/98 × 2 = 40/196 - Likewise, for the 2nd fraction, since 28 × 7 = 196,
9/28 = 9 × 7/28 × 7 = 63/196 - Subtract the two like fractions:
40/196 - 63/196 = 40 - 63/196 = -23/196
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/98-9/28 20/98-18/28 20/98-9/56 60/98-9/28 20/98-27/28 20/98-9/84 20/98-45/28 20/98-63/28