Subtract 18/8 from 15/49
1st number: 15/49, 2nd number: 2 2/8
15/49 - 18/8 is -381/196.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 8 is 392
Next, find the equivalent fraction of both fractional numbers with denominator 392 - For the 1st fraction, since 49 × 8 = 392,
15/49 = 15 × 8/49 × 8 = 120/392 - Likewise, for the 2nd fraction, since 8 × 49 = 392,
18/8 = 18 × 49/8 × 49 = 882/392 - Subtract the two like fractions:
120/392 - 882/392 = 120 - 882/392 = -762/392 - After reducing the fraction, the answer is -381/196
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/49-18/8 15/49-36/8 15/98-18/8 15/49-18/16 45/49-18/8 15/49-54/8 15/49-18/24 75/49-18/8 15/49-90/8 15/49-18/40 15/49-18/56