Subtract 80/30 from 49/20
1st number: 2 9/20, 2nd number: 2 20/30
49/20 - 80/30 is -13/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 30 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
49/20 = 49 × 3/20 × 3 = 147/60 - Likewise, for the 2nd fraction, since 30 × 2 = 60,
80/30 = 80 × 2/30 × 2 = 160/60 - Subtract the two like fractions:
147/60 - 160/60 = 147 - 160/60 = -13/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/20-80/30 49/40-80/30 49/20-80/60 49/60-80/30 49/20-80/90