Subtract 18/49 from 15/28
15/28 - 18/49 is 33/196.
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,
15/28 = 15 × 7/28 × 7 = 105/196 - Likewise, for the 2nd fraction, since 49 × 4 = 196,
18/49 = 18 × 4/49 × 4 = 72/196 - Subtract the two like fractions:
105/196 - 72/196 = 105 - 72/196 = 33/196
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/28-18/49 15/28-36/49 15/56-18/49 15/28-18/98 45/28-18/49 15/28-54/49 15/84-18/49 75/28-18/49 15/28-90/49