Subtract 15/49 from 18/28
18/28 - 15/49 is 33/98.
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,
15/49 = 15 × 4/49 × 4 = 60/196 - Subtract the two like fractions:
126/196 - 60/196 = 126 - 60/196 = 66/196 - After reducing the fraction, the answer is 33/98
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/28-15/49 18/28-30/49 18/56-15/49 18/28-15/98 54/28-15/49 18/28-45/49 18/84-15/49 90/28-15/49 18/28-75/49