Add 60/42 and 12/81
1st number: 1 18/42, 2nd number: 12/81
60/42 + 12/81 is 298/189.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 81 is 1134
Next, find the equivalent fraction of both fractional numbers with denominator 1134 - For the 1st fraction, since 42 × 27 = 1134,
60/42 = 60 × 27/42 × 27 = 1620/1134 - Likewise, for the 2nd fraction, since 81 × 14 = 1134,
12/81 = 12 × 14/81 × 14 = 168/1134 - Add the two like fractions:
1620/1134 + 168/1134 = 1620 + 168/1134 = 1788/1134 - 1788/1134 simplified gives 298/189
- So, 60/42 + 12/81 = 298/189
In mixed form: 1109/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/42+24/81 60/84+12/81 60/42+36/81 60/42+60/81 60/42+84/81