Subtract 63/98 from 80/40
1st number: 2 0/40, 2nd number: 63/98
80/40 - 63/98 is 19/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 98 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 98 × 20 = 1960,
63/98 = 63 × 20/98 × 20 = 1260/1960 - Subtract the two like fractions:
3920/1960 - 1260/1960 = 3920 - 1260/1960 = 2660/1960 - After reducing the fraction, the answer is 19/14
- In mixed form: 15/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: