Add 7/9 and 90/42
1st number: 7/9, 2nd number: 2 6/42
7/9 + 90/42 is 184/63.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 42 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 9 × 14 = 126,
7/9 = 7 × 14/9 × 14 = 98/126 - Likewise, for the 2nd fraction, since 42 × 3 = 126,
90/42 = 90 × 3/42 × 3 = 270/126 - Add the two like fractions:
98/126 + 270/126 = 98 + 270/126 = 368/126 - 368/126 simplified gives 184/63
- So, 7/9 + 90/42 = 184/63
In mixed form: 258/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/9+90/42 7/18+90/42 7/9+90/84 21/9+90/42 7/27+90/42 35/9+90/42 7/45+90/42 49/9+90/42 7/63+90/42