Add 54/12 and 2/7, Solve 4 6/12 + 2/7 as a fraction

Add 54/12 and 2/7

1^st number: 4 6/12, 2^nd number: 2/7

54/12 + 2/7 is 67/14.

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,
54/12 = 54 × 7/12 × 7 = 378/84
Likewise, for the 2nd fraction, since 7 × 12 = 84,
2/7 = 2 × 12/7 × 12 = 24/84
Add the two like fractions:
378/84 + 24/84 = 378 + 24/84 = 402/84
402/84 simplified gives 67/14
So, 54/12 + 2/7 = 67/14
In mixed form: 411/14

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad