Add 12/42 and 45/16
1st number: 12/42, 2nd number: 2 13/16
12/42 + 45/16 is 347/112.
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,
12/42 = 12 × 8/42 × 8 = 96/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
45/16 = 45 × 21/16 × 21 = 945/336 - Add the two like fractions:
96/336 + 945/336 = 96 + 945/336 = 1041/336 - 1041/336 simplified gives 347/112
- So, 12/42 + 45/16 = 347/112
In mixed form: 311/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/42+45/16 12/42+90/16 12/84+45/16 12/42+45/32 36/42+45/16 12/42+45/48 60/42+45/16 12/42+45/80 84/42+45/16