Add 84/42 and 7/16
1st number: 2 0/42, 2nd number: 7/16
84/42 + 7/16 is 39/16.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 16 is 336
Next, find the equivalent fraction of both fractional numbers with denominator 336 - For the 1st fraction, since 42 × 8 = 336,
84/42 = 84 × 8/42 × 8 = 672/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
7/16 = 7 × 21/16 × 21 = 147/336 - Add the two like fractions:
672/336 + 147/336 = 672 + 147/336 = 819/336 - 819/336 simplified gives 39/16
- So, 84/42 + 7/16 = 39/16
In mixed form: 27/16
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/42+14/16 84/42+7/32 84/42+21/16 84/42+7/48 84/42+35/16 84/42+7/80 84/42+49/16