Subtract 30/40 from 49/98
49/98 - 30/40 is -1/4.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 40 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 98 × 20 = 1960,
49/98 = 49 × 20/98 × 20 = 980/1960 - Likewise, for the 2nd fraction, since 40 × 49 = 1960,
30/40 = 30 × 49/40 × 49 = 1470/1960 - Subtract the two like fractions:
980/1960 - 1470/1960 = 980 - 1470/1960 = -490/1960 - After reducing the fraction, the answer is -1/4
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 49/98-60/40 49/98-30/80 49/98-90/40