Subtract 30/80 from 54/49
1st number: 1 5/49, 2nd number: 30/80
54/49 - 30/80 is 285/392.
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,
54/49 = 54 × 80/49 × 80 = 4320/3920 - Likewise, for the 2nd fraction, since 80 × 49 = 3920,
30/80 = 30 × 49/80 × 49 = 1470/3920 - Subtract the two like fractions:
4320/3920 - 1470/3920 = 4320 - 1470/3920 = 2850/3920 - After reducing the fraction, the answer is 285/392
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/49-60/80 54/98-30/80 54/49-90/80