Add 1/9 and 90/7
1st number: 1/9, 2nd number: 12 6/7
1/9 + 90/7 is 817/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 7 is 63
Next, find the equivalent fraction of both fractional numbers with denominator 63 - For the 1st fraction, since 9 × 7 = 63,
1/9 = 1 × 7/9 × 7 = 7/63 - Likewise, for the 2nd fraction, since 7 × 9 = 63,
90/7 = 90 × 9/7 × 9 = 810/63 - Add the two like fractions:
7/63 + 810/63 = 7 + 810/63 = 817/63 - So, 1/9 + 90/7 = 817/63
In mixed form: 1261/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/9+90/7 1/18+90/7 1/9+90/14 3/9+90/7 1/27+90/7 1/9+90/21 5/9+90/7 1/45+90/7 1/9+90/35 7/9+90/7 1/63+90/7 1/9+90/49