Add 54/21 and 1/63
1st number: 2 12/21, 2nd number: 1/63
54/21 + 1/63 is 163/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 63 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 21 × 3 = 63,
54/21 = 54 × 3/21 × 3 = 162/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
1/63 = 1 × 1/63 × 1 = 1/63 - Add the two like fractions:
162/63 + 1/63 = 162 + 1/63 = 163/63 - So, 54/21 + 1/63 = 163/63
In mixed form: 237/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/21+2/63 54/42+1/63 54/21+3/63 54/63+1/63 54/21+5/63 54/21+7/63