Add 1/42 and 56/16
1st number: 1/42, 2nd number: 3 8/16
1/42 + 56/16 is 74/21.
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,
1/42 = 1 × 8/42 × 8 = 8/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
56/16 = 56 × 21/16 × 21 = 1176/336 - Add the two like fractions:
8/336 + 1176/336 = 8 + 1176/336 = 1184/336 - 1184/336 simplified gives 74/21
- So, 1/42 + 56/16 = 74/21
In mixed form: 311/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/42+56/16 1/84+56/16 1/42+56/32 3/42+56/16 1/42+56/48 5/42+56/16 1/42+56/80 7/42+56/16