Add 12/3 and 7/84, Solve 4 0/3 + 7/84 as a fraction

Add 12/3 and 7/84

1^st number: 4 0/3, 2^nd number: 7/84

12/3 + 7/84 is 49/12.

Find the least common denominator or LCM of the two denominators:
LCM of 3 and 84 is 84

Next, find the equivalent fraction of both fractional numbers with denominator 84
For the 1st fraction, since 3 × 28 = 84,
12/3 = 12 × 28/3 × 28 = 336/84
Likewise, for the 2nd fraction, since 84 × 1 = 84,
7/84 = 7 × 1/84 × 1 = 7/84
Add the two like fractions:
336/84 + 7/84 = 336 + 7/84 = 343/84
343/84 simplified gives 49/12
So, 12/3 + 7/84 = 49/12
In mixed form: 41/12

MathStep (Works offline)

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