Subtract 8/40 from 45/98
45/98 - 8/40 is 127/490.
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,
45/98 = 45 × 20/98 × 20 = 900/1960 - Likewise, for the 2nd fraction, since 40 × 49 = 1960,
8/40 = 8 × 49/40 × 49 = 392/1960 - Subtract the two like fractions:
900/1960 - 392/1960 = 900 - 392/1960 = 508/1960 - After reducing the fraction, the answer is 127/490
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/98-8/40 45/98-16/40 45/98-8/80 45/98-24/40 45/98-56/40