Subtract 18/49 from 80/40
1st number: 2 0/40, 2nd number: 18/49
80/40 - 18/49 is 80/49.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 49 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 40 × 49 = 1960,
80/40 = 80 × 49/40 × 49 = 3920/1960 - Likewise, for the 2nd fraction, since 49 × 40 = 1960,
18/49 = 18 × 40/49 × 40 = 720/1960 - Subtract the two like fractions:
3920/1960 - 720/1960 = 3920 - 720/1960 = 3200/1960 - After reducing the fraction, the answer is 80/49
- In mixed form: 131/49
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/40-36/49 80/40-18/98 80/40-54/49 80/40-90/49