Add 54/21 and 3/60
1st number: 2 12/21, 2nd number: 3/60
54/21 + 3/60 is 367/140.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 60 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 21 × 20 = 420,
54/21 = 54 × 20/21 × 20 = 1080/420 - Likewise, for the 2nd fraction, since 60 × 7 = 420,
3/60 = 3 × 7/60 × 7 = 21/420 - Add the two like fractions:
1080/420 + 21/420 = 1080 + 21/420 = 1101/420 - 1101/420 simplified gives 367/140
- So, 54/21 + 3/60 = 367/140
In mixed form: 287/140
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/21+6/60 54/42+3/60 54/21+9/60 54/63+3/60 54/21+15/60 54/21+21/60