Add 90/42 and 90/16
1st number: 2 6/42, 2nd number: 5 10/16
90/42 + 90/16 is 435/56.
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,
90/16 = 90 × 21/16 × 21 = 1890/336 - Add the two like fractions:
720/336 + 1890/336 = 720 + 1890/336 = 2610/336 - 2610/336 simplified gives 435/56
- So, 90/42 + 90/16 = 435/56
In mixed form: 743/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/84+90/16 90/42+90/32 90/42+90/48 90/42+90/80