Add 3/42 and 12/16
3/42 + 12/16 is 23/28.
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,
3/42 = 3 × 8/42 × 8 = 24/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
12/16 = 12 × 21/16 × 21 = 252/336 - Add the two like fractions:
24/336 + 252/336 = 24 + 252/336 = 276/336 - 276/336 simplified gives 23/28
- So, 3/42 + 12/16 = 23/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/42+12/16 3/42+24/16 3/84+12/16 3/42+12/32 9/42+12/16 3/42+36/16 3/42+12/48 15/42+12/16 3/42+60/16 3/42+12/80 21/42+12/16 3/42+84/16