Subtract 49/3 from 90/20
1st number: 4 10/20, 2nd number: 16 1/3
90/20 - 49/3 is -71/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 3 is 60
Next, find the equivalent fraction of both fractional numbers with denominator 60 - For the 1st fraction, since 20 × 3 = 60,
90/20 = 90 × 3/20 × 3 = 270/60 - Likewise, for the 2nd fraction, since 3 × 20 = 60,
49/3 = 49 × 20/3 × 20 = 980/60 - Subtract the two like fractions:
270/60 - 980/60 = 270 - 980/60 = -710/60 - After reducing the fraction, the answer is -71/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/20-98/3 90/40-49/3 90/20-49/6 90/60-49/3 90/20-49/9 90/20-49/15 90/20-49/21