Subtract 70/80 from 32/98
32/98 - 70/80 is -215/392.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 80 is 3920
Next, find the equivalent fraction of both fractional numbers with denominator 3920 - For the 1st fraction, since 98 × 40 = 3920,
32/98 = 32 × 40/98 × 40 = 1280/3920 - Likewise, for the 2nd fraction, since 80 × 49 = 3920,
70/80 = 70 × 49/80 × 49 = 3430/3920 - Subtract the two like fractions:
1280/3920 - 3430/3920 = 1280 - 3430/3920 = -2150/3920 - After reducing the fraction, the answer is -215/392
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 64/98-70/80 96/98-70/80