Add 42/16 and 54/42
1st number: 2 10/16, 2nd number: 1 12/42
42/16 + 54/42 is 219/56.
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,
42/16 = 42 × 21/16 × 21 = 882/336 - Likewise, for the 2nd fraction, since 42 × 8 = 336,
54/42 = 54 × 8/42 × 8 = 432/336 - Add the two like fractions:
882/336 + 432/336 = 882 + 432/336 = 1314/336 - 1314/336 simplified gives 219/56
- So, 42/16 + 54/42 = 219/56
In mixed form: 351/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/16+54/42 42/32+54/42 42/16+54/84 42/48+54/42 42/80+54/42