Add 90/98 and 20/63
90/98 + 20/63 is 545/441.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 98 and 63 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 63 × 14 = 882,
20/63 = 20 × 14/63 × 14 = 280/882 - Add the two like fractions:
810/882 + 280/882 = 810 + 280/882 = 1090/882 - 1090/882 simplified gives 545/441
- So, 90/98 + 20/63 = 545/441
In mixed form: 1104/441
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/98+40/63 90/98+60/63