Add 90/98 and 70/9
1st number: 90/98, 2nd number: 7 7/9
90/98 + 70/9 is 3835/441.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 9 is 882
Next, find the equivalent fraction of both fractional numbers with denominator 882 - For the 1st fraction, since 98 × 9 = 882,
90/98 = 90 × 9/98 × 9 = 810/882 - Likewise, for the 2nd fraction, since 9 × 98 = 882,
70/9 = 70 × 98/9 × 98 = 6860/882 - Add the two like fractions:
810/882 + 6860/882 = 810 + 6860/882 = 7670/882 - 7670/882 simplified gives 3835/441
- So, 90/98 + 70/9 = 3835/441
In mixed form: 8307/441
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/98+70/18 90/98+70/27 90/98+70/45 90/98+70/63