Add 81/60 and 12/54
1st number: 1 21/60, 2nd number: 12/54
81/60 + 12/54 is 283/180.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 60 and 54 is 540
Next, find the equivalent fraction of both fractional numbers with denominator 540 - For the 1st fraction, since 60 × 9 = 540,
81/60 = 81 × 9/60 × 9 = 729/540 - Likewise, for the 2nd fraction, since 54 × 10 = 540,
12/54 = 12 × 10/54 × 10 = 120/540 - Add the two like fractions:
729/540 + 120/540 = 729 + 120/540 = 849/540 - 849/540 simplified gives 283/180
- So, 81/60 + 12/54 = 283/180
In mixed form: 1103/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 81/60+24/54 81/60+36/54 81/60+60/54 81/60+84/54