Subtract 3/45 from 49/20
1st number: 2 9/20, 2nd number: 3/45
49/20 - 3/45 is 143/60.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 45 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 20 × 9 = 180,
49/20 = 49 × 9/20 × 9 = 441/180 - Likewise, for the 2nd fraction, since 45 × 4 = 180,
3/45 = 3 × 4/45 × 4 = 12/180 - Subtract the two like fractions:
441/180 - 12/180 = 441 - 12/180 = 429/180 - After reducing the fraction, the answer is 143/60
- In mixed form: 223/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/20-3/45 49/20-6/45 49/40-3/45 49/20-3/90 49/20-9/45 49/60-3/45 49/20-15/45 49/20-21/45