Add 25/21 and 60/81
1st number: 1 4/21, 2nd number: 60/81
25/21 + 60/81 is 365/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 81 is 567
Next, find the equivalent fraction of both fractional numbers with denominator 567 - For the 1st fraction, since 21 × 27 = 567,
25/21 = 25 × 27/21 × 27 = 675/567 - Likewise, for the 2nd fraction, since 81 × 7 = 567,
60/81 = 60 × 7/81 × 7 = 420/567 - Add the two like fractions:
675/567 + 420/567 = 675 + 420/567 = 1095/567 - 1095/567 simplified gives 365/189
- So, 25/21 + 60/81 = 365/189
In mixed form: 1176/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/21+60/81 25/42+60/81 75/21+60/81 25/63+60/81