Add 3/12 and 54/7
1st number: 3/12, 2nd number: 7 5/7
3/12 + 54/7 is 223/28.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
3/12 = 3 × 7/12 × 7 = 21/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
54/7 = 54 × 12/7 × 12 = 648/84 - Add the two like fractions:
21/84 + 648/84 = 21 + 648/84 = 669/84 - 669/84 simplified gives 223/28
- So, 3/12 + 54/7 = 223/28
In mixed form: 727/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/12+54/7 3/24+54/7 3/12+54/14 9/12+54/7 3/36+54/7 3/12+54/21 15/12+54/7 3/60+54/7 3/12+54/35 21/12+54/7 3/84+54/7 3/12+54/49