Add 30/84 and 81/16
1st number: 30/84, 2nd number: 5 1/16
30/84 + 81/16 is 607/112.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 84 × 4 = 336,
30/84 = 30 × 4/84 × 4 = 120/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
81/16 = 81 × 21/16 × 21 = 1701/336 - Add the two like fractions:
120/336 + 1701/336 = 120 + 1701/336 = 1821/336 - 1821/336 simplified gives 607/112
- So, 30/84 + 81/16 = 607/112
In mixed form: 547/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/84+81/16 30/84+81/32 90/84+81/16 30/84+81/48 30/84+81/80