Subtract 48/10 from 49/20
1st number: 2 9/20, 2nd number: 4 8/10
49/20 - 48/10 is -47/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 10 is 20
Next, find the equivalent fraction of both fractional numbers with denominator 20 - For the 1st fraction, since 20 × 1 = 20,
49/20 = 49 × 1/20 × 1 = 49/20 - Likewise, for the 2nd fraction, since 10 × 2 = 20,
48/10 = 48 × 2/10 × 2 = 96/20 - Subtract the two like fractions:
49/20 - 96/20 = 49 - 96/20 = -47/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/20-48/10 49/20-96/10 49/40-48/10 49/20-48/20 49/60-48/10 49/20-48/30 49/20-48/50 49/20-48/70