Add 27/21 and 10/63
1st number: 1 6/21, 2nd number: 10/63
27/21 + 10/63 is 13/9.
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,
27/21 = 27 × 3/21 × 3 = 81/63 - Likewise, for the 2nd fraction, since 63 × 1 = 63,
10/63 = 10 × 1/63 × 1 = 10/63 - Add the two like fractions:
81/63 + 10/63 = 81 + 10/63 = 91/63 - 91/63 simplified gives 13/9
- So, 27/21 + 10/63 = 13/9
In mixed form: 14/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/21+10/63 27/21+20/63 27/42+10/63 81/21+10/63 27/21+30/63 27/63+10/63 27/21+50/63 27/21+70/63