Subtract 27/8 from 90/49
1st number: 1 41/49, 2nd number: 3 3/8
90/49 - 27/8 is -603/392.
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,
90/49 = 90 × 8/49 × 8 = 720/392 - Likewise, for the 2nd fraction, since 8 × 49 = 392,
27/8 = 27 × 49/8 × 49 = 1323/392 - Subtract the two like fractions:
720/392 - 1323/392 = 720 - 1323/392 = -603/392
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/49-54/8 90/98-27/8 90/49-27/16 90/49-81/8 90/49-27/24 90/49-27/40 90/49-27/56