Subtract 20/90 from 49/5
1st number: 9 4/5, 2nd number: 20/90
49/5 - 20/90 is 431/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
49/5 = 49 × 18/5 × 18 = 882/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
20/90 = 20 × 1/90 × 1 = 20/90 - Subtract the two like fractions:
882/90 - 20/90 = 882 - 20/90 = 862/90 - After reducing the fraction, the answer is 431/45
- In mixed form: 926/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/5-20/90 49/5-40/90 49/10-20/90 49/5-60/90 49/15-20/90 49/25-20/90 49/35-20/90