Add 90/42 and 4/16
1st number: 2 6/42, 2nd number: 4/16
90/42 + 4/16 is 67/28.
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,
90/42 = 90 × 8/42 × 8 = 720/336 - Likewise, for the 2nd fraction, since 16 × 21 = 336,
4/16 = 4 × 21/16 × 21 = 84/336 - Add the two like fractions:
720/336 + 84/336 = 720 + 84/336 = 804/336 - 804/336 simplified gives 67/28
- So, 90/42 + 4/16 = 67/28
In mixed form: 211/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/42+8/16 90/84+4/16 90/42+4/32 90/42+12/16 90/42+4/48 90/42+20/16 90/42+4/80 90/42+28/16