Add 6/20 and 54/63
6/20 + 54/63 is 81/70.
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,
6/20 = 6 × 63/20 × 63 = 378/1260 - Likewise, for the 2nd fraction, since 63 × 20 = 1260,
54/63 = 54 × 20/63 × 20 = 1080/1260 - Add the two like fractions:
378/1260 + 1080/1260 = 378 + 1080/1260 = 1458/1260 - 1458/1260 simplified gives 81/70
- So, 6/20 + 54/63 = 81/70
In mixed form: 111/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/20+54/63 6/40+54/63 18/20+54/63 6/60+54/63 30/20+54/63 42/20+54/63