Add 9/20 and 72/98
9/20 + 72/98 is 1161/980.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 20 and 98 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 20 × 49 = 980,
9/20 = 9 × 49/20 × 49 = 441/980 - Likewise, for the 2nd fraction, since 98 × 10 = 980,
72/98 = 72 × 10/98 × 10 = 720/980 - Add the two like fractions:
441/980 + 720/980 = 441 + 720/980 = 1161/980 - So, 9/20 + 72/98 = 1161/980
In mixed form: 1181/980
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/20+72/98 9/40+72/98 27/20+72/98 9/60+72/98 45/20+72/98 63/20+72/98