Add 5/42 and 40/16
1st number: 5/42, 2nd number: 2 8/16
5/42 + 40/16 is 55/21.
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,
5/42 = 5 × 8/42 × 8 = 40/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
40/16 = 40 × 21/16 × 21 = 840/336 - Add the two like fractions:
40/336 + 840/336 = 40 + 840/336 = 880/336 - 880/336 simplified gives 55/21
- So, 5/42 + 40/16 = 55/21
In mixed form: 213/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/42+40/16 5/42+80/16 5/84+40/16 5/42+40/32 15/42+40/16 5/42+40/48 25/42+40/16 5/42+40/80 35/42+40/16