Subtract 18/27 from 15/49
15/49 - 18/27 is -53/147.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 27 is 1323
Next, find the equivalent fraction of both fractional numbers with denominator 1323 - For the 1st fraction, since 49 × 27 = 1323,
15/49 = 15 × 27/49 × 27 = 405/1323 - Likewise, for the 2nd fraction, since 27 × 49 = 1323,
18/27 = 18 × 49/27 × 49 = 882/1323 - Subtract the two like fractions:
405/1323 - 882/1323 = 405 - 882/1323 = -477/1323 - After reducing the fraction, the answer is -53/147
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/49-18/27 15/49-36/27 15/98-18/27 15/49-18/54 45/49-18/27 15/49-54/27 15/49-18/81 75/49-18/27 15/49-90/27