Add 84/16 and 56/42
1st number: 5 4/16, 2nd number: 1 14/42
84/16 + 56/42 is 79/12.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 42 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 16 × 21 = 336,
84/16 = 84 × 21/16 × 21 = 1764/336 - Likewise, for the 2nd fraction, since 42 × 8 = 336,
56/42 = 56 × 8/42 × 8 = 448/336 - Add the two like fractions:
1764/336 + 448/336 = 1764 + 448/336 = 2212/336 - 2212/336 simplified gives 79/12
- So, 84/16 + 56/42 = 79/12
In mixed form: 67/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/32+56/42 84/16+56/84 84/48+56/42 84/80+56/42