Subtract 48/80 from 18/49
18/49 - 48/80 is -57/245.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 80 is 3920
Next, find the equivalent fraction of both fractional numbers with denominator 3920 - For the 1st fraction, since 49 × 80 = 3920,
18/49 = 18 × 80/49 × 80 = 1440/3920 - Likewise, for the 2nd fraction, since 80 × 49 = 3920,
48/80 = 48 × 49/80 × 49 = 2352/3920 - Subtract the two like fractions:
1440/3920 - 2352/3920 = 1440 - 2352/3920 = -912/3920 - After reducing the fraction, the answer is -57/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/49-48/80 18/49-96/80 18/98-48/80 54/49-48/80 90/49-48/80