Add 12/42 and 63/16
1st number: 12/42, 2nd number: 3 15/16
12/42 + 63/16 is 473/112.
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,
63/16 = 63 × 21/16 × 21 = 1323/336 - Add the two like fractions:
96/336 + 1323/336 = 96 + 1323/336 = 1419/336 - 1419/336 simplified gives 473/112
- So, 12/42 + 63/16 = 473/112
In mixed form: 425/112
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/42+63/16 12/84+63/16 12/42+63/32 36/42+63/16 12/42+63/48 60/42+63/16 12/42+63/80 84/42+63/16