Subtract 12/28 from 90/98
90/98 - 12/28 is 24/49.
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,
90/98 = 90 × 2/98 × 2 = 180/196 - Likewise, for the 2nd fraction, since 28 × 7 = 196,
12/28 = 12 × 7/28 × 7 = 84/196 - Subtract the two like fractions:
180/196 - 84/196 = 180 - 84/196 = 96/196 - After reducing the fraction, the answer is 24/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/98-24/28 90/98-12/56 90/98-36/28 90/98-12/84 90/98-60/28 90/98-84/28