Add 90/42 and 4/9
1st number: 2 6/42, 2nd number: 4/9
90/42 + 4/9 is 163/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 42 and 9 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 42 × 3 = 126,
90/42 = 90 × 3/42 × 3 = 270/126 - Likewise, for the 2nd fraction, since 9 × 14 = 126,
4/9 = 4 × 14/9 × 14 = 56/126 - Add the two like fractions:
270/126 + 56/126 = 270 + 56/126 = 326/126 - 326/126 simplified gives 163/63
- So, 90/42 + 4/9 = 163/63
In mixed form: 237/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/42+8/9 90/84+4/9 90/42+4/18 90/42+12/9 90/42+4/27 90/42+20/9 90/42+4/45 90/42+28/9 90/42+4/63