Subtract 9/8 from 80/49
1st number: 1 31/49, 2nd number: 1 1/8
80/49 - 9/8 is 199/392.
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,
80/49 = 80 × 8/49 × 8 = 640/392 - Likewise, for the 2nd fraction, since 8 × 49 = 392,
9/8 = 9 × 49/8 × 49 = 441/392 - Subtract the two like fractions:
640/392 - 441/392 = 640 - 441/392 = 199/392
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/49-18/8 80/98-9/8 80/49-9/16 80/49-27/8 80/49-9/24 80/49-45/8 80/49-9/40 80/49-63/8 80/49-9/56