Add 1/20 and 9/63
1/20 + 9/63 is 27/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 63 is 1260
Next, find the equivalent fraction of both fractional numbers with denominator 1260 - For the 1st fraction, since 20 × 63 = 1260,
1/20 = 1 × 63/20 × 63 = 63/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
9/63 = 9 × 20/63 × 20 = 180/1260 - Add the two like fractions:
63/1260 + 180/1260 = 63 + 180/1260 = 243/1260 - 243/1260 simplified gives 27/140
- So, 1/20 + 9/63 = 27/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/20+9/63 1/20+18/63 1/40+9/63 3/20+9/63 1/20+27/63 1/60+9/63 5/20+9/63 1/20+45/63 7/20+9/63