Subtract 5/63 from 20/49
20/49 - 5/63 is 145/441.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 63 is 441
Next, find the equivalent fraction of both fractional numbers with denominator 441 - For the 1st fraction, since 49 × 9 = 441,
20/49 = 20 × 9/49 × 9 = 180/441 - Likewise, for the 2nd fraction, since 63 × 7 = 441,
5/63 = 5 × 7/63 × 7 = 35/441 - Subtract the two like fractions:
180/441 - 35/441 = 180 - 35/441 = 145/441
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/49-5/63 20/49-10/63 20/98-5/63 60/49-5/63 20/49-15/63 20/49-25/63 20/49-35/63