Subtract 98/49 from 18/28
1st number: 18/28, 2nd number: 2 0/49
18/28 - 98/49 is -19/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 49 is 196
Next, find the equivalent fraction of both fractional numbers with denominator 196 - For the 1st fraction, since 28 × 7 = 196,
18/28 = 18 × 7/28 × 7 = 126/196 - Likewise, for the 2nd fraction, since 49 × 4 = 196,
98/49 = 98 × 4/49 × 4 = 392/196 - Subtract the two like fractions:
126/196 - 392/196 = 126 - 392/196 = -266/196 - After reducing the fraction, the answer is -19/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/28-98/49 18/56-98/49 54/28-98/49 18/84-98/49 90/28-98/49