Add 90/7 and 35/18
1st number: 12 6/7, 2nd number: 1 17/18
90/7 + 35/18 is 1865/126.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 7 × 18 = 126,
90/7 = 90 × 18/7 × 18 = 1620/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
35/18 = 35 × 7/18 × 7 = 245/126 - Add the two like fractions:
1620/126 + 245/126 = 1620 + 245/126 = 1865/126 - So, 90/7 + 35/18 = 1865/126
In mixed form: 14101/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/7+70/18 90/14+35/18 90/7+35/36 90/21+35/18 90/7+35/54 90/35+35/18 90/7+35/90 90/49+35/18